Mr. Yook.
Are you going to kill me with that?
You lied to me from the start, didn't you?
You offered to help me investigate just so you could use me.
How could you do this to me?
What about you?
If only you hadn't suspected me.
I was going to go into hiding.
You call that an excuse?
Mr. Yook, please think this through.
This is your last chance to pay for your wrongdoings.
I can't do that.
Until the very end,
I must be remembered as a good person.
It's true.
You are a psychopath.
That's right.
I don't know why a psychopath like me wants that,
but it's what I want.
To my family,
to my colleagues,
and even you.
I can't get caught.
Yook Dong Sik,
you're under arrest as the suspect of the predatory serial murders.
Shouldn't you see a doctor?
I'm good.
This...
What an idiot.
He didn't kill a single person...
but was arrested as a serial killer.
(Psychopath Diary)
(Episode 12)
On August 25, 2018,
you killed 48-year-old Park Jae Mun but disguised it as a drowning.
Is this your doing?
Yes.
On November 10 of the same year, you killed 28-year-old Lee Ji Hui...
but slit her wrist to make it look like a suicide.
- Yes. - On March 4, 2019,
you killed 32-year-old Oh Min Seong...
but made it look like he overdosed on sleeping pills.
On March 24, 2019,
you locked up 71-year-old Park Mal Soon in her residence...
and poisoned her with gas...
- and made it look... - It was all my doing.
Just like it says in my diary,
I killed them all.
On July 8, you killed 27-year-old Hong Jin Goo but made it...
look like he committed suicide by dropping him into a chemical tank.
On September 18, you killed Kim Myeong Guk...
by burning down his house and made it look like a suicide.
And on December 19, you killed ex-cop Park Moo Suk...
Kim Myeong Guk...
He's the homeless man, right?
Yes.
I probably killed him...
on September 13 at a construction site.
- If you read the diary... - Didn't you hurt your head?
It says you have retrograde amnesia.
Yes.
Then your memory can't be a reliable source.
We'll recreate the crime scene and cross-check the facts,
so just answer the questions I ask.
Sure.
Is former gang member Jang Chil Sung...
an accomplice?
No, just like I told you,
I committed these crimes by myself.
If you read it thoroughly,
he's actually another person I fooled.
I'm sorry.
Unbelievable.
What did you do with all these?
Did you commit the murders with him?
If you're not an accomplice,
why have you been cleaning up after Yook Dong Sik?
You really should talk.
Captain Ryoo says we should ask the essentials and let him go.
My boss...
would've never done such a thing.
He's not one to go after those...
that are socially disadvantaged.
He confessed to it all.
He says he did what he wrote in the diary.
What?
Are you all right?
I still can't believe it.
Yook Dong Sik confessed to everything.
He said he did everything he wrote in the diary.
Mr. Kim, the homeless guy.
The diary only has the entry of an attempted murder.
It doesn't say what happened afterward.
He confessed to that too.
The homeless man ran away...
so he burned his house a few days later.
This killer takes souvenirs and has OCD.
He tracked down the victim and ended up killing him,
so why didn't he write about it in his diary?
He didn't write the details of every killing.
The killing of Park Moo Suk isn't mentioned either.
What about the murder of Son Ji Min eight years ago?
It's not written in the diary, but it must be his doing, right?
It happened so long ago...
that it won't be easy to collect evidence.
We'll take it slow and find what we need...
to add that case to his long list of charges.
What's most important is that...
he's the predator killer you've been after.
You have the right to be proud of yourself.
The notorious serial killer who terrorized the nation...
has finally been arrested.
The suspect, Yook Dong Sik,
has confessed to the six murders written in a diary...
that is definite evidence in this case...
along with an additional killing that he also committed.
- Here he comes? - Look.
- Come on. - Yook Dong Sik!
- Why did you kill them? - Why did you write about...
the killings in detail?
How do you feel about all this?
Do you even feel at all guilty?
Will you request a psychiatric evaluation?
Will you go with the insanity defense?
All your questions will be answered after we investigate.
I'm not insane.
I'm just a psychopathic...
killer.
- What? - Do you mean that...
- Wait! - Then answer this!
(Ministry of Justice)
Is it true that the suspect enjoyed movies about murderers?
As his family, what are your thoughts about all this?
Did you know your son was a psychopath?
We'll report all of you for obstruction of business!
Go inside.
The hatred toward his family written in his journal is notable.
Was the suspect always dissatisfied...
with his relationship with the family?
I have nothing to say.
- Please tell us! - Please tell us!
Tell us!
What are you doing? Get ready to open for business.
Do you really plan to open with all this going on?
Why not?
Did we commit a crime?
Dong Chan.
From the moment...
he was wearing diapers until now, I've never seen him...
kill even a cockroach.
But he killed people?
Our Dong Sik? He would never do that.
Even if the whole world judges him,
we should believe him.
Unplug all the phones. Now.
It's too loud to work.
Unplug them.
You don't think...
He couldn't have really done that, right?
Who knows? I don't know anything anymore.
Why won't this come out?
What am I supposed to do?
Why can't you pull that out?
Here.
(Yook Dong Sik)
- Yook Dong Sik, the suspect... - My gosh.
Look at that.
People have been posting regarding what he did and where,
where he lives, his family and work information,
and other personal information about him online.
Yook was known to have a mild temperament...
and was an ordinary office worker until the day he was arrested.
(Yook Dong Sik, Murderer)
They're still open for business?
That owner has crazy thick skin. Unbelievable!
- Is this the place? - Is this it?
How could they stay in business? They have no shame.
- Let's go. - You didn't book this place, right?
No, definitely not.
Officer Shim Bo Kyung, who arrested Yook Dong Sik,
suspected of being the predator killer,
received a special promotion this morning.
The justice department is sensitive to the demands of the people...
for strict punishment.
They are expected to decide on the seven cases of murder...
for which they have evidence and testimonies this week.
The National Assembly plans...
If you have any final words, please go ahead.
I don't.
Okay, then. We will now...
announce the decision on the charges against Yook Dong Sik.
Upon reviewing the evidence presented...
at the initial trial and the first trial,
we see that the murderer, after murdering the victims...
Yook Dong Sik is sentenced to life in prison.
Yes.
Your Honor, my son would never do that!
Dong Sik, tell them it wasn't you.
Tell them! What are you doing? Dong Sik!
Your Honor!
Say something.
Tell them! Dong Sik!
Dong Sik!
How could Dong Sik do that?
When you said you suspected him,
I thought it was utterly ridiculous.
Bo Kyung.
You did a great thing. You know that, right?
Don't be like that.
Be happy and celebrate.
I just don't get it, that's why.
How could...
people like us understand the mind of a psychopath?
Even still...
The person Yook Dong Sik that I knew...
and the psychopath Yook Dong Sik...
are completely different.
The moment he tried to kill you,
the Yook Dong Sik we knew...
died right then.
Stop.
Let it go. If Detective Shim knew what you did,
he would've been very proud.
Would he really?
For sure.
Then why did he show up again?
What?
Nothing.
I guess it means I should give my dad more attention.
(Establish Law and Order)
- Is that him? - The predator killer.
He's a murderer?
He looks kind.
- He doesn't look like a killer. - I'm surprised.
He killed seven people? Him?
He's a psychopath.
He really is a psycho.
He killed seven people. Seven.
That's just what they know about.
- They say there may be more. - An old woman who collected papers,
someone studying for a national exam, a homeless man...
He chose poor and powerless people...
and killed them cruelly.
And he took their fingerprint with their own blood...
and wrote about it in his diary, and...
I know this is a garbage dump,
but how could they put him with us?
Inmate 7046. Sit straight.
My back hurts. You know that.
Inmate 9362. Go in.
You look normal.
We would've thought you were human at first glance.
Are you that infamous Yook Dong Sik?
What was it?
A predator, was it?
Excuse me... Were you talking to me?
Is there another Yook Dong Sik in here?
I apologize. You weren't looking at me, so I didn't know.
Are you telling us to look you in the eye when talking to you?
No, sir. No.
I wasn't thinking.
I'm sure you wouldn't want to look me in the eye.
I'll keep looking down from now on.
Look at this punk.
Are you saying...
I'll get scared if I look you in the eye, you punk?
Wait.
Let go! I want to see this punk's eyes.
Let me see.
Look at me. Are you mocking me?
Look at me.
What's... What's with this punk?
No, no. That wasn't my intent.
I apologize if I scared you.
Sit.
Gosh.
My gosh.
There.
If you stop your treatment now,
we can't guarantee how he'll be.
We have some free time now.
I think it may be better if my mom and I watch him.
But he should receive care from experts...
He did for several months,
but he seems to have gotten worse.
I'm not blaming the hospital. I was inattentive.
That's probably why.
Thank you for everything.
Okay.
I did the right thing, right?
Yes.
Thank you, my daughter.
No, I'm over here.
Let me tell you something.
For some reason, I feel like something doesn't match...
between Yook Dong Sik and that diary of his.
Why do you think I feel that way?
Well, that's because that's exactly what you're thinking.
If he was a true predatory killer, he could've killed you on the spot.
But why do you think he suddenly hesitated?
You remember that look on his face, right?
He was feeling guilt.
It wasn't the face of a psychopath.
You met my father, didn't you?
I'm sorry. The thing is...
You went because he called. There's no need to be sorry.
So what did he ask you?
Did he ask if I was the one who killed Park Moo Suk?
No, he asked me if you met him.
And he also asked about the personal withdrawal you made.
But it seemed like he already knew the answers to his questions.
Really?
Then tell me.
What do you think?
What do you mean?
Do you think...
I killed Park Moo Suk?
From what I know, the culprit already got caught.
Yook Dong Sik admitted to all the crimes.
Do you think I'm asking you because I don't know the facts?
I'm asking what you think.
I don't think it was you.
I guess you've been suspicious of Yook Dong Sik for a while...
because you noticed that he was strange.
- But I had no idea... - But you see,
the chairman keeps getting funny ideas,
and I feel like it's because someone keeps instigating him.
If that person isn't you,
then I'd very much like to know who it is.
I'll look into it, sir.
Do it quietly.
Please.
Hey.
- He got discharged? - I couldn't do anything.
She suddenly wanted to take him home.
You should've stopped her at all costs.
How's the old man?
He won't be able to communicate for a while.
I asked her to get a checkup once every month.
So I'll keep you updated.
Bo Kyung.
I don't like him very much. He seems very cunning.
And you have no time to be on a date like this.
Be quiet, will you?
Congratulations on your promotion.
I'm sure your father would've been proud.
By the way, about my dad...
My friend already told me.
If that's what you want,
I understand.
How is he doing?
Not very well.
We should continue to keep an eye on him.
If you took him home because of the medical bills,
you don't need to worry.
Like I told you before, I sincerely...
I've been meaning to return this to you.
- I appreciate how you feel but... - Bo Kyung.
I'm sorry. I should go now.
I know you're having a hard time.
You and Dong Sik were very close, so I'm sure you're sad.
It's natural that you feel betrayed but...
I don't have time to think about stuff like that.
There's something I need to check.
I get why she wanted me to be quiet.
You chose to walk the path of a true police officer...
instead of letting yourself get swayed by personal emotions.
You really are my daughter.
Whatever.
If I fail to get married, it's all your fault.
How is that my fault? I'm created by your subconsciousness.
How long are you planning to stay with me this time?
I'll always be around until Yook Dong Sik clears his name.
You already think he was framed?
This really isn't going to be easy.
What do you want?
What?
I'm sorry. Some guy drove like an idiot.
What's up?
Someone's here to see you.
Are you saying...
this was Mr. Yook's handwritten suicide note?
He had to take the blame for the Yuseong Biomedi incident.
And I guess that really upset him.
I was going to throw this away,
but I kept it with me because it bothered me somehow.
So you're saying the day he tried to commit suicide...
was the day he lost his memory due to the car accident.
Is that correct?
Come to think of it,
Dong Sik started to act a little different...
after he was diagnosed with amnesia.
My gosh, but still...
According to the news, he had already killed a few people.
But think about it carefully.
If he was always that type of person,
why would he suddenly write this...
and try to commit suicide?
He would've done something to Mr. Gong.
Or even me.
He's right.
Something does seem a little weird.
But he confessed to all the crimes.
Guys like him don't have a sane mind.
So they go back and forth.
The suicide note, amnesia,
and diary.
The puzzle is starting to come together.
Will you please be quiet?
Okay, I'll be quiet.
I just wanted to concentrate and read it properly.
(It's getting hard for me to cope with life.)
Please don't cry or get too emotional here.
You must stay calm and say only what you need to say.
Otherwise, we'll quickly be out of time.
Dong Sik!
- Did you eat? - Boss!
I know the truth!
I know that you'd never kill those innocent people.
Boss!
He's right. It wasn't you.
So why in the world did you confess?
He already knows...
that I killed someone.
No, that's not...
I'm sorry. I don't even deserve to be your son.
So please don't visit me anymore.
- Dong Sik. - My goodness.
My goodness gracious.
Don't cry.
Let's not cry.
I'm not even human. I don't even deserve to be sad.
I must keep it in. Keep the tears inside.
(Cultivate morality)
Are you all right?
I think I wet my pants.
We should stay clear of him.
No wonder I'm smelling poop.
Leave us, you dirty rat.
(Cultivate morality)
(Boring Day)
Yook Dong Sik, the sucker...
who was ready to kill himself after being falsely accused.
The predator killer who attacked a homeless man to kill him.
Could they really be the same person?
Here's the simplest theory.
Yook Dong Sik who tried to commit suicide...
and the predator killer who tried to kill the homeless man...
They're not the same person.
What about...
the diary then?
It belongs to the predator killer.
Then...
Yook Dong Sik who suffers from memory loss...
wound up possessing the predator killer's diary.
What do you think? Sounds plausible, right?
It doesn't seem completely outrageous,
but still...
Who are you talking to?
Oh, well...
I was on the phone with Taek Soo.
Have you had dinner?
Should I fix something up?
I'm good.
Are you all right?
Yes, it's just that...
my eyes have been troubling me.
How long has this been going on?
You should've told me.
Yes, Ms. Jo. Did you look into it?
Who? Captain Ryoo Jae Joon?
Good job.
I did get an odd vibe from him at the hospital the other day.
I don't know what Shim Bo Kyung told him,
but he could've found out that I'm the culprit he failed to arrest.
What if that's why he met my father?
Why though?
To blackmail him?
Ryoo Jae Joon,
I'm afraid you won't...
get the mercy of a disguised suicide.
Can you see properly?
I should've gotten glasses sooner.
Everything is clearer now.
I'm sorry, Mom.
My focus hasn't been on our family lately.
As if that's new.
It's how you and your dad have always functioned.
You know, I'm more settled with my job now,
so I'll take the burden off your shoulders.
I'll spend more time with Dad too.
I'd be grateful.
Moving on.
Serial killer Yook Dong Sik who has been sentenced to life in prison...
- is currently serving his time... - Dad looks surprised.
- However, his heinous crimes... - Hold on.
The public is still outraged.
Especially, after the interrogation...
Is that the Yook Dong Sik?
The serial killer?
- Many say that the press... - Yes, that's him.
should refrain from agitating the public.
- Yook Dong Sik... - That's right.
I finally recognize him now. It's him.
He's Poverty is a Dog's Name.
What? Poverty is a Dog's Name?
What on earth is going on?
What are you talking about?
They say it's impossible to fully know people,
but this is unbelievable.
Mom!
You see, he's the guy who's been walking our dog.
The one that suddenly didn't show up.
I was wondering if it truly was him, but...
Preying on the socially disadvantaged...
What?
Could there be some sort of mix-up though?
I mean,
he didn't seem like the type to kill people.
According to the diary entries,
he prepared his murders by scouting out appropriate spots...
prior to the killings.
However, Mr. Yook was walking our dog that day.
But that alone can't be evidence of him being innocent.
The DNA found out the scene of Park Moo Suk's murder...
turned out to be Mr. Yook's.
The abandoned factory where Park Moo Suk died...
feels odd, right?
It's secluded...
and doesn't have a security camera in its vicinity.
It's the perfect place to commit a murder.
What if the place was chosen on purpose?
That's highly premeditated.
If Yook Dong Sik called Park Moo Suk there to kill him,
why did Park Moo Suk even show up?
Park Moo Suk was a detective for 15 years...
and was blackmailing a serial killer for one million dollars.
That factory screamed of a trap,
but Park Moo Suk walked in anyway?
- Just think about it. - I know.
That's why I'm going there to check it out myself.
Is it really you? The predator thingy?
Yes, I'm sorry.
You're sorry? For what?
Do you even know why I feel wronged?
Get up. Get up!
Are you that scary?
Bring it on then. Fight me!
Get up!
Get up.
- Break it off. - Get up!
Let go of me.
Bring it on!
That fool.
Why would he provoke the tiger?
I was only talking to myself.
Why is everyone avoiding him?
Are the crimes he committed as heinous as mine?
No, not really? He's just insane.
He picks on everybody claiming his innocence...
and has himself locked up in solitary.
He smells like poop anyway, so it's best not to...
get involved with him.
Poop?
The solitary cell must have bad piping...
and the smell keeps everyone away.
But he must enjoy it or something...
because he makes it his mission to go there.
Inmate 9362, you have a visitor.
Hold on.
I came because I have something to say.
Please, sit down.
Why are you acting like that? You're the one who tried to kill me.
I'm sorry.
I came out because I really wanted to apologize.
Forget the apology.
Explain exactly what happened when you killed Park Moo Suk.
I...
I am a horrible monster.
No.
Tell me exactly what happened.
- I'm a monster. - Dong Sik.
Yook Dong Sik!
You fought with Park Moo Suk and rolled down the stairs, right?
Is that how you stabbed him?
Well... We rolled down the stairs.
I must have hit my head or something...
because I lost consciousness.
When I woke up, he was stabbed...
and unconscious on top of me.
Something smells fishy.
In other words, you don't remember stabbing him.
Or...
it was an accident, is that it?
I already told the police everything.
I don't want to talk about it anymore.
One more question.
That closed factory where Park Moo Suk died.
Did you tell him to meet you there?
No.
I received a text message to go there.
See? Dong Sik didn't call him there.
Jae Ho showed me your suicide note.
On September 13, the day Kim Myeong Guk,
the homeless man, was attacked by the predator killer,
you tried to commit suicide.
I know.
Do you remember what you wrote?
Probably not, right?
That day, you were hit by my car...
and got amnesia.
You were holding that diary at the time.
We both assumed it was yours at the time,
but what if...
it wasn't?
The diary belongs to someone else?
And if that person...
knew the truth about you,
you may not be the one...
who killed Park Moo Suk either.
What if you obtained the real predator killer's diary...
just before I hit you with my car?
If you had picked it up on the street by chance...
No.
What if you had witnessed the predator killer...
murdering someone?
Are you saying...
I may have mistaken...
the real predator killer's diary as my own...
because of my amnesia?
Is that what you're saying?
That's the most ridiculous thing I have ever heard.
Dong Sik.
August 25, 2018.
Age 48. Park Jae Mun.
I threw him in the water and staged it as a drowning.
November 10.
Age 28, Lee Ji Hui. I slit her wrist...
and staged it as a suicide.
Four months later, March 4,
age 32, Oh Min Seong.
April 24.
Age 67, Park Mal Soon.
July 8.
Age 42, Hong Jin Goo. At the factory...
September 13.
Kim Myeong Guk at a construction site.
I did kill them all.
I'm sure I killed Park Moo Suk too.
Hold on.
Did you just say September 13?
You killed him at a construction site?
Yes.
Why?
No. Kim Myeong Guk, the homeless man, died...
on September 18.
You're mistaken.
I'll go now.
Dong Sik.
On September 13,
Kim Myeong Guk was attacked at a construction site.
Five days later,
he died in a fire in his home that was staged as a suicide.
What?
If you didn't set the fire that day,
at least Kim Myeong Guk...
was not killed by you.
What do you mean?
Your visitation is over.
Wait a little while. I'll look more into it and come back.
Does that make any sense?
He confessed and admitted his guilt.
Yook Dong Sik sternly believes he killed Kim Myeong Guk.
Not on September 18 at Kim Myeong Guk's home,
but on the 13th at the construction site.
If as you say,
his statement was wrong.
Do you want to undo it all because of that one fact?
The police will become a laughing stock because of you.
You'll be disciplined...
and branded the cop who framed an innocent man of serial murders.
Can you handle it?
I will have to handle it.
Why?
Yook Dong Sik and the entire world...
believes he's the predator.
- Uncle. - The case eight years ago too.
If it is settled that it was his doing as well,
your father may get compensation for being injured on duty.
Think hard about it. Got that?
Got it, sir.
Got it? You got what?
Don't tell me you plan to bury it as that punk said.
Dad, don't come anymore.
What? Shim Bo Kyung. Are you really my daughter?
I'm doing this because I am.
Captain Ryoo's reaction was strange.
I'm going to check the statements and check everything again.
As you say,
if I suspect, and suspect some more,
the truth will show itself.
Whatever truth surfaces,
I won't ignore it.
So...
you don't have to come anymore.
I probably killed him...
on September 13 at a construction site.
He's delusional about everything that he got charged with.
So it's natural that his testimony was full of errors.
If I didn't edit the written testimony,
there could've been a reinvestigation.
And if that happened, the actual culprit would've...
eventually gotten exposed.
What's that supposed to mean?
It means as long as I don't speak,
the world will never know who the true culprit is.
Director Seo is a very lucky guy.
He has a dumb subordinate who truly thinks he was the one...
who committed all those murders.
And on top of that, the one cop...
that knows the truth is me.
I'd love to do something for you as a token of gratitude.
What would you like?
Would you like to become an executive at our company...
after your retirement so you can enjoy a relaxed life?
There's no need to rush.
(Predator Killer Murder Case, Yook Dong Sik's interrogation)
On September 18, you killed Kim Myeong Guk...
by burning down his house and made it look like a suicide.
And on December 19, you killed ex-cop Park Moo Suk...
Kim Myeong Guk... He's the homeless man, right?
Yes.
I probably killed him...
on September 13 at a construction site.
- If you read the diary... - Didn't you hurt your head?
It says you have retrograde amnesia.
Yes.
Then your memory can't be a reliable source.
We'll recreate the crime scene...
and cross-check the facts,
so just answer the questions I ask.
Sure.
What's up?
I checked the original footage of Yook Dong Sik's testimony.
Bo Kyung, didn't I make myself clear?
Now, I finally get it.
You already knew...
that Yook Dong Sik wasn't the culprit.
Am I correct?
That's why you left out the statements that didn't match.
How will that make a difference?
That small error in his statement isn't enough to change the result.
And you're the one who arrested him saying he's the real culprit.
Do you know...
who the real culprit is?
Bo Kyung.
Do you know him or not?
Let's meet up first.
Who's the real culprit?
Tell me!
What? What happened?
Hello?
Hello? Sir.
Uncle. Uncle.
Hello?
Uncle.
(Chairman)
Where are you?
This view is magnificent.
I'll miss this view once we move to the new building.
What did you do to Captain Ryoo Jae Joon?
Did you see him die?
Was that your order?
Now, no one knows about...
that filthy hobby of yours.
Do you think I came this far without having to shed some blood?
"A monster that's wearing the mask of a human being."
"A merciless beast."
Those are the words of the people that got destroyed by me.
Like I told you,
you were very much like me ever since you were little.
What's wrong? Did you think I'd cast you away...
just because you killed a few people?
I probably would've done so if you had failed...
to take care of the mess.
But I noticed that you dealt with it very nicely.
Yook Dong Sik, was it?
A true king needs to shed blood when it's necessary.
This position is for someone who can endure that.
However, if you must shed blood as a king,
you must do so for your benefit, not for fun.
Does... Does that mean...
I'll talk to the Legal Team about the succession of the firm.
Then I'll gather the board as soon as things get settled.
Thank you, sir.
I'm your father. You can stop calling me "sir."
I'm sick of it now.
I'm worried that Ji Hoon might provoke you...
to keep your bad habits.
So I'll send him to the States.
I might not be the predatory killer?
Then what am I?
I'm sure the homeless man died that day.
I'm ready to fight today.
Come on, let's fight.
Bring it on.
What's the matter? You already beat me up...
for saying I never killed anyone.
You stink. Get lost.
Hit me. Go ahead and beat me up.
- What's wrong with this jerk? - Hey, that's enough.
I get that you're upset, so just stop.
- What? - A female police officer came...
and told me that she could help you clear your name, Oh Myung Dal.
"Oh Myung Dal"?
He killed her in an abandoned hospital but moved the body...
to an open area in Oh's vicinity.
The killer may have seen Oh and Son...
together in the convenience store...
In other words, Oh may have seen the killer too, right?
What's the point? It's too late for that!
My gosh, I wanted to be nice. But I can't stand your smell.
Finish him off.
Is he the guy that got arrested for the high school girl's murder?
You stink of poop!
Wait.
You're Oh Myung Dal, aren't you?
You came here eight years ago for the murder of Son Ji Min...
What do you want?
Help.
What's this? I guess he's just an idiot.
Hey, carry on.
Hey, wait.
I suddenly remembered something.
My mind sparked.
Do that to me one more time.
Hit me again. Come on.
Darn it!
Again!
Hit me once again.
Hurry. Hit me again.
What is this?
Don't you hear me?
Beat me up like you've been pounding him.
Right here. Here.
Hit me right here.
Like this, darn it.
Like this!
Beat me up already!
Right now!
- Why are you doing this? - Hit me!
- Darn it! - What took you so long?
No, wait.
Hold on!
Predator, my foot. You're a dimwit.
Why would you jump in?
Why are we the only ones in solitary?
All we did was take a beating.
I'm always the one who causes trouble.
Also, that other guy is chummy with the warden.
Now that you know, don't meddle with my business.
Because of you, I can't be in my usual cell.
Whatever.
Just go to sleep.
It'll smell a bit though.
Mr. Oh, I hear you were framed.
That's right.
No one has ever cared no matter what I said,
but now everyone's suddenly interested?
I think I've been falsely accused too.
Right, of course.
I thought I was the only one, but that's what they all say.
You know,
we could...
both be here because of the same man.
What?
Eight years ago, Son Ji Min, the convenience store part-timer.
I know it wasn't you who killed her.
Did you perhaps...
see the real culprit?
Excuse me.
Here you go.
That's a buy one, get one free.
You should have it.
I only need one bottle anyway.
Thank you.
He laced it with something.
A sleeping pill perhaps.
A sleeping pill?
I told that to the police after finding the body,
but no one believed me.
In anyone's eyes, I look more like the culprit anyway.
I can say for sure it isn't you.
I may not have seen his face, but I remember his height and voice.
What do you mean by us being in here because of the same guy?
What if you obtained the real predator killer's diary...
just before I hit you with my car?
If you had picked it up on the street by chance...
No.
What if you had witnessed the predator killer...
murdering someone?
"April 24, today..."
"Today, I killed another person."
Are you saying I may have mistaken...
the real predator killer's diary as my own...
because of my amnesia?
Is that what you're saying?
No...
No!
It really...
wasn't me.
It wasn't me.
I'm not the killer.
Salute.
I can't believe you have it worse than I do.
Because of that diary?
This is hilarious!
So you and I...
are both locked in here...
because of the real predator killer?
What do I do from here?
Gently move the toilet and lift it.
Do you...
know the movie "The Shawshank Redemption"?
(Psychopath Diary)
Are you suggesting that I break out of prison?
This is your only way.
You never know when the evil Yook Dong Sik will appear.
- Yook Dong Sik! - He came to Seoul...
because he wants to uncover the truth.
Maybe he's trying to meet you.
I don't think that Captain Ryoo's death...
was accidental.
Can you help me?