Original subtitles

[alarm buzzing, chiming]

[groans]

[sighs]

[alarm stops]

[sighs]

[sighs]

When did she leave?

[groans]

[keypad beeping]

[door lock clicks]

[door lock chimes]

[♪ quirky music]

[grunts]

Hey, what's all that?

Uh, you're not going to work?

[sighs] You don't remember last night?

You really should stop after three sojus.

[objects shuffling]

[faint tap]

If those three really are the culprits, then who is their victim?

And the next culprit, who would that be?

[breathes deeply]

For now, this'll be our base camp.

[soft scoff]

Where?

Here? My place?

Mm-hmm. Your place.

[sighs] Why do we need a base camp anyway?

'Cause we need somewhere we can work on this, obviously.

And we know the culprit's someone close to us.

We don't want anyone overhearing us.

And besides, I like your place.

[inhales deeply]

[chuckles]

And who said I would have any interest in that?

[scoffs]

Okay, okay, yeah… [mumbles]

We'll work together, sure. [chuckles]

[♪ soft percussive music]

[claps] Like it?

Cool setup, huh?

Ugh, I need a coffee before we do this.

You want some?

I already ordered you one.

Extra shot Americano, that right?

-[doorbell chiming] -[sighs]

[♪ theme music]

Nine Puzzles

[rustling]

Donghoon Yoon and Miyoung Lee don't have criminal records.

Chimok Kang does, driving under the influence and assault.

Misdemeanors.

Do you really think they could be co-conspirators?

Of course.

They couldn't have ended up in the same puzzle just by chance.

[♪ soft pensive music]

Do you think my uncle was a murderer?

Don't you have anything to say? You were on that case.

You and I both know you were the only likely suspect.

Yeah, that's true.

[clicks tongue]

[breathes deeply]

My uncle and Miyoung Lee's paths never crossed.

Although, Miyoung Lee did lead us to Chimok Kang.

So, what does that mean?

Do you think that he'll lead us to another culprit?

What if that person's the next victim?

[sighs]

Mmm…

[inhales sharply]

There's something I wanted to ask.

That tattoo you have on your neck,

when'd you get that?

Oh, this?

I was on the Hangang crypto case, this would be three years ago.

I had to go undercover as a gang member, and, uh…

I never got it removed.

[blows air]

Ooh, inside man.

Undercover!

That's kinda cool.

[scoffs]

You don't wanna remove it?

You can't take it all off at once, you have to do multiple sessions.

And after the first one, I didn't wanna do more.

It's grown on me.

Wasn't just 'cause it really hurt?

Oh, well, yeah, that too.

I thought I was gonna die.

[soft chuckle]

Yoonsu Do

"Yoonsu Do."

You know this guy?

Yoonsu Do?

He was one of the people Chimok Kang called

before he died, like, three times.

You don't have three separate phone calls with someone for no reason.

He wanted something from him.

Have you met him?

No, I had no reason to.

His alibi was good and nothing really pointed to him being the murderer.

Yoonsu Do…

Hang on a sec.

[line ringing]

"Hansaem Kim"

Yoonsu Do?

I did find him suspicious.

He said he didn't know who Chimok Kang was,

but they had three phone calls right before he died,

and the last one was a minute, 40 seconds.

So they obviously weren't strangers.

Anyway, why do you ask?

Ah…

It's nothing. I was just curious.

In any case, you've never met the guy.

[sucks teeth] All right then. I'll talk to you later.

Ena?

Went to meet Yoonsu Do

Yoonsu Do, president of DH Construction

[indistinct chatter]

[thwacks]

[electronic beep]

[sighs]

[thudding]

I don't understand what the Seoul Metropolitan Police

could want from me.

[sighs]

Chimok Kang's a friend of yours?

I don't know who that is.

[phone ringing softly]

[groans]

[phone ringing]

You son of a bitch!

I'm practicing golf.

Why does this motherfucker keep calling me?

Can you explain something to me?

Why would Mr. Chimok Kang call a stranger three times?

[sighs]

Chimok Kang really isn't a friend of yours?

Donghoon Yoon and Miyoung Lee. How about them?

How many times I gotta repeat this?

Hmm?

I already said all this to the investigator.

Why do I gotta say it again?

This is pissing me off.

If that's all you wanna know, beat it.

[sighs]

The three people I just listed

were all murdered by the same person.

The killer's probably scoping out his next target right now.

He's biding his time and getting ready to pounce.

If that killer…

had his eye on you, Mr. Yoonsu Do, what would be the reason?

Have you given anyone a motive to kill you?

What?

Where are you coming up with this bullshit, you little pest?

You're making my bad mood even worse.

[♪ cheeky music]

There was this cab driver

who was arrested for killing his passenger.

He bashed in his head with a hammer he had in his trunk.

Wanna know why he did it?

Rudeness.

He'd been talked down to.

The passenger had been rude to the driver for the whole ride.

Said he was in a hurry and threw the fare at him as he was getting out.

The driver grabbed the guy and killed him right there on the spot.

He turned him to face him, he looked directly into his eyes,

and he drove that hammer into his skull. [imitates whacking]

[scoffs]

I told him to be smarter next time.

He got caught because he made a mess and left behind lots of blood spatter.

-Hmm… -[Ena] He should've stayed calm

and thought of a cleaner way to do it.

For example,

he could've taken a long, sharp needle,

crept up behind the guy, and stabbed his neck.

In a spot right above the first cervical vertebrae,

right here.

If I were the killer I'm looking for,

that's how I'd do it.

Boy, what a crazy bitch.

Get the hell out.

Get out of my office, bitch, right now.

[sighs]

This man here, did he ever make an appointment?

Uh…

What?

-Uh… -Thanks for your help.

[Ena] Why did Chimok Kang come all the way here?

[♪ tense music]

People sure seem to have a lot of questions.

What do you want to know, detective?

Did your husband ever mention someone by the name of Yoonsu Do?

Because it appears he called him three times right before his death.

Yoonsu Do…

What's his line of work?

He runs a construction company.

And he's older?

I suppose so, he's around 60.

You know him?

My husband did mention a construction company president.

He asked him to officiate our wedding.

But the man said he wouldn't.

Is this the man he asked?

Yes, that's him.

That would have been three years ago, before we were married.

My husband and I went to meet him together,

and I remember him being very polished and well-dressed,

but just incredibly rude.

I got the sense that he resented my husband.

He seemed offended that we asked him to officiate our wedding.

He was mean.

Did your husband ever mention how they met each other?

They'd worked together before?

No, he never said.

Although…

he did mention that the two of them shared some good times.

What do you mean by "good times"?

I don't know.

No idea.

Have you ever killed someone, detective?

[chuckles] Of course not.

That's not exactly a common thing to have done, even for a cop.

No offense, but you're no fun.

[Hansaem scoffs]

Please send Ena next time.

[soft chuckle]

You seen Léon: The Professional?

When we ended our last session, you were very angry,

but your mood seems improved.

I finally found a good place to sleep.

Here, got you a gift. It's fine if you kill it.

So you really slept well?

[Ena sighs] Yes.

I slept uninterrupted and without nightmares

for two whole hours.

Wow. And where is this place?

I'm keeping it a secret.

Hmm…

Hmm.

Doctor, I wanted to ask, isn't living with Dr. Hwang kind of awkward?

Why would it be awkward?

He's a man, for one.

And I feel like it'd be hard sharing space with someone all the time.

I've actually never felt any sexual tension with Dr. Hwang.

So, it seems to work out.

It saves money too.

Seoul is just so expensive now.

[soft groan]

Anyway, we don't live together, we just share a building.

Did you buy that?

Do you think that I did?

Oh, so that means…

you must have painted it yourself.

Yep.

You think it's good?

[inhales deeply]

[Ena] Hmm…

Y'know, I'm an artist myself.

[Dr. Hwang chuckles] Right.

It seems too much like a copy.

A copy of what?

By the way, why do you live with Dr. Lee?

Is she a girl that you might like?

[Dr. Hwang's awkward chuckle]

[♪ soft quirky music]

E. Yoon

[breathes deeply]

What's up?

Perfect timing. Help me bring all this stuff in.

[strained grunting]

Why-Why did you order all this stuff?

[sighs]

[strained grunting]

[chuckling]

What?

Why'd you just take your hat off?

I was getting too hot, why?

Don't just abruptly do stuff like that.

[gasps] It's scary.

Isn't this pretty?

She said they "shared some good times"?

Mm.

But they aren't related,

they aren't from the same town, and they never went to school together.

A restaurant owner and a construction company president.

How'd they meet in the first place?

I'm guessing these so-called "good times" they had

probably involved some big financial gain.

Did they co-own a business?

Cup of coffee? Should I order some?

Are you ever gonna leave?

Why would I leave our base camp?

Why's it gotta be my place,

and why'd you set up that humidifier in here?

Because I'm able to sleep here.

What?

[clears throat]

Yesterday,

after you passed out at that table,

I also went to sleep.

Right here, in this chair.

And then, I woke up and saw that two hours had passed.

I normally can't even sleep for five whole minutes.

But for the first time in a decade,

I slept uninterrupted.

I can't ever sleep at my own house,

so how come I can here?

I realized, there are no ghosts here.

But my house is totally haunted.

It's the place where my uncle was found,

lying in a pool of his own blood.

Then why don't you…

find somewhere else to live?

I could never leave that house.

It's my duty to remember.

And the owner of this house here once accused me of my uncle's murder!

My therapist told me that…

once I feel like I'm truly safe, then I'll be able to sleep.

So, maybe I feel a sense of safety here?

Then pay me.

At least pay for room and board.

Then pay me for that pizza.

[chuckles]

[phone buzzing]

-Hang on. -[buzzing continues]

-Hello, Captain. Is something-- -[Jungho] Have you seen the news?

No, why? Do we have a case?

[Jungho] Yoonsu Do was just found dead.

-Huh? -[Jungho] Get over here now.

[gasps]

[sirens blaring]

[♪ suspenseful music]

[camera shutter clicks]

He was here late.

He had a strategy meeting.

Uh, it must've been around 9:00 p.m. when he told me he was on his way.

But he never came down.

I thought, he's just held up.

It happens, so I waited.

And then, after an hour, I got worried

and came up to his office.

At first, I just assumed he'd fallen asleep,

so I called his name a few times,

but he wasn't waking up, so I…

got closer and saw…

And then, you dialed 911?

Of course, I called the police right away.

Um, how'd he seem recently? Uh…

Any unusual behavior?

Any health symptoms he'd mentioned, like…

uh, chest pain, pressure, anything like that?

I think…

those recent articles linking him to the mayor of Seoul…

and the accidental death at the resort had made him very uneasy.

Plus his shares were dropping.

Still, he was healthy.

[Lt. Ro] My God.

I've only seen him on the news.

Can't believe we're meeting like this.

You think his company's tanking stocks gave him a heart attack?

I checked it out.

They were in a nosedive.

There's a huge crowd of reporters downstairs.

This is gonna cause an uproar.

[Hansaem] Sorry I'm late.

Hmm?

Why'd she come with you?

Did you call for reinforcements, Captain?

Why would I?

I figured you might need my help.

Just this morning, I had a meeting with him.

"President Yoonsu Do"

Why? What was it about?

Can I have a look?

[sighs]

You just asked me about Yoonsu Do this morning.

Now he's been found dead, and you have nothing to say to me?

Is there something that you'd like to share,

or is this not the time?

[blows air]

Both, I guess.

DH Construction occupies all of Canon Tower's 30th floor.

However, starting from 5:00 a.m. this morning,

there's no CCTV footage of this floor.

It's been wiped.

I'll look into it immediately.

[♪ soft pensive music]

[Ena] If the killer had stabbed him above the first vertebrae,

the needle would've been hidden under hair, therefore harder to find.

But they took the risk of stabbing him below the sixth vertebrae.

Almost like they wanted it to be found as soon as possible.

Where was the killer hiding?

From what point did they make their way inside, and how?

[♪ pensive music builds]

Turns out Yoonsu Do was connected to Chimok Kang.

Apparently, all the 30th floor security footage was erased.

You really think he's the fourth victim?

Mm-hmm.

He is the fourth victim and also… a culprit.

[news anchor] Yoonsu Do, the President of DH Construction

was found dead in his office last night.

Mr. Do was being investigated for preferential treatment

in the development of a cultural center in Seoul.

He is said to have felt pressured by those calling for his company

to bear responsibility for an incident at Yangyang Resort,

which led to a death.

Reporter Jinhyeok Choi has more.

[Jinhyeok] Yesterday, at 10:30 p.m.,

Yoonsu Do, the president of DH Construction,

was found dead in his office in Canon Tower in Hangang-gu, Seoul.

His chauffeur, Mr. Kim, who first discovered Mr. Do's body,

-made a statement to the police… -Oh, good morning, Captain.

What are you doing here so early?

Wow, this must be a pretty major case, huh?

On my way in, I saw the Chief's car in the lot.

Where's the rest of your team?

Mr. Park, we don't even have the autopsy results.

I can't tell you anything yet.

Hey, now, don't be like that.

I bet this has something to do with the mayor's lobbying scandal.

That and the incident at Yangyang Resort.

Like I just explained to you, I have nothing to share right now.

Captain. Hey, you…

You seriously didn't even find a will?

You did. I know it.

You eaten yet?

Let's go get some breakfast.

[engine revving]

National Forensic Service

[guard] Ms. Ena Yoon?

Are you Ms. Ena Yoon?

Huh?

Yes, I'm Ena Yoon.

[guard] Oh. So, you are here.

A courier came by and dropped this off. Here.

[♪ foreboding music]

Ah, here are the autopsy results.

What's the cause of death?

Hypoglycemic shock due to an insulin overdose.

There was over 2,000 pmol per liter of insulin in his blood.

About 10 times the normal dose for a person with diabetes.

Yoonsu Do is the fourth piece.

It's insulin normally used for blood sugar control,

but someone intentionally overdosed him.

We also found a needle mark on the back of his neck.

We'll send you a copy of the report.

[Hansaem] Yes, sir, understood.

I'll meet the victim's family, share the results, then call you.

Talk to you soon.

[horns honking]

Okay, but…

how did they know you were at the hospital?

[seatbelt clicks]

Hey, hey… Where you going? Ena! Hey!

-[car door closes] -Ena!

[♪ suspenseful music]

What the hell is she doing now?

[horns honking loudly]

[line ringing]

Calling… Ena Yoon

[ringing continues]

Just pick up, dammit.

[Ena] Gun, whisper, armband…

and now, clown.

The "clown" is Yoonsu Do.

The three…

No, the four of them are the culprits.

Dolls.

Cotton candy.

Dancing children.

A sandcastle.

A Ferris wheel?

This looks like an amusement park.

Could this be referring to a real place?

All these people, could they be connected to it, somehow?

[keypad beeping]

[door lock clicks]

[door closes]

[door lock chimes]

Hey, why are you ignoring my calls?

And why the hell did you jump out of the car?

I had somewhere to go.

Where's that?

Wait, hold up. Were you worried about me?

You… [sighs]

I'm the kind of person who worries about everyone.

Also…

Look, we don't know anything about the killer, but they know about you.

They're watching you. You realize you could be in danger?

-They could kill you next! -Yeah, right.

If they were gonna kill me, they'd've done it a while ago.

They're letting me live for a reason.

-What, because of the puzzle? -Mm-hmm.

They want me to find the meaning hidden in the puzzle.

If they do kill me, it'll be after the puzzle's completed.

That means… I'll be safe until then.

Don't put too much stock in that.

Perfection, in good or evil, is denied to saints and sinners alike.

This is a serial killer we're dealing with.

They don't think logically.

That quote, I believe it's from The Red Redmaynes by Eden Phillpotts!

-You've read it? -[phone buzzing]

Masterpiece, right?

You should reread it.

Yes, Captain?

Sure, tell me where.

[♪ light background music]

-[door opens] -[door bell jingling]

Sorry I'm late.

[sighs]

Thanks.

[sighs] It's so frustrating.

Footage was erased,

we found no DNA, no fingerprints, no footprints, and no murder weapon.

What about the ground floor CCTV? You check that?

Yeah, I have San reviewing any footage we have,

but there are so many other companies,

and thousands of people come in and out every day,

so I don't think it's likely we'll find anything.

[sighs]

By the way,

what've you and Lieutenant Yoon been up to?

Just, uh…

You know…

Something for curiosity's sake.

[soft chuckle]

That sounds familiar.

I thought you believed Ena was responsible for Chief Yoon's death.

Why the sudden change of heart?

You dating her?

[soft chuckle]

It's not like that at all.

I'll tell you about it

after this is all over.

Let me know if you need anything.

[sighs]

We're heading to Yangyang tomorrow.

I've contacted the Gangwon unit.

Oh, is this about the death at the resort?

According to Lieutenant Yoon's statement,

Yoonsu Do set up a meeting with someone there before he died.

Saeri Land

List of amusement parks in Korea

[Ena] The amusement park scene in the puzzle drawing,

it has to mean something.

"Dream Land"

And if this park actually exists… [sighs]

[♪ intriguing music]

A Ferris wheel?

Dream Land.

[worker] The media's reporting that the death

was the result of our negligent management and excessive cost-cutting.

-And the Labor Administration also-- -Mr. Doho Seo?

Yeah, that's right. We'd arranged a meeting.

He said he'd call me after he'd talked to the police, but he never did.

It's been chaos ever since that accident.

That shitty son of a… [groans]

I only accepted this contract because of him.

You seem frustrated with Mr. Do.

Don't get it wrong.

I lose much more with Yoonsu dead.

What was the exact cause of the accidental death?

It was the concrete.

It was taking too long for it to set.

Due to the low temperature, it wasn't drying fast enough.

So, to finish the job on time, we burned lignite to speed things up.

God… all because of money.

Do you know of anyone working on the construction site or at the resort

who might have had a motive to kill Mr. Do?

[Doho] I'm not sure.

[scoffs]

There are more than a few.

A little hard to settle on just one individual.

[Doho] Oh.

There's this one guy, but he's not linked to the resort.

He owns a restaurant in Gangnam.

His name is Chimok, if I recall.

Really good golfer.

Are you referring to Chimok Kang?

Yes, that's right. Chimok Kang.

I always thought there was something strange

about his relationship with Mr. Do.

What do you mean by "strange"?

Mr. Do would invite him to join our golf game

whenever we'd place bets and we were short a player.

This guy was quite the gambler, and he had great form.

That asshole had one hell of a drive.

But then, whenever he'd get drunk, he'd start saying stuff like,

"Hey, this isn't enough. Give me another resort, come on."

And he'd keep nagging and whining like a little bitch. [chuckles]

I mean, this dipshit wasn't even in the resort business.

And Mr. Do, whatever else he was,

he's wasn't usually the kind of guy who'd just sit there listening to that crap.

He'd normally either cuss him out or punch him right in the face.

[groaning sigh]

He never said a word.

He would bite his tongue altogether.

He'd just sit there and take it.

Where were you two days ago, between 9:00 and 11:00 p.m.?

[scoffs]

Me?

I was at my house, okay?

My son studies in the States, and right now he's home,

so we went out to eat, then we spent the rest of the night in.

[sighs]

Come on, you can check. I'm telling the truth.

[♪ faint cheerful festive music]

[Ena] Why is this particular amusement park

depicted in the killer's puzzle?

[camera shutter clicks]

Wanna try?

If you do, I'll turn it on.

You should ride it while you still can.

At the end of the month, we'll be closing down.

Dream Land closing Dec. 1st, 2023

How long have you been in business?

Hmm, as of this year,

it's been 33 years.

[worker chuckles]

You should've seen it when it opened.

It sure was incredible.

If you're not going to ride, I'll leave you be.

Actually…

do you know if any major accidents happened here over the past 33 years?

Any fatalities, or…

Goodness, no. Nothing like that.

I would know.

I've worked here since the very beginning.

Some children might've gotten lost because the crowds were always so huge,

but nothing as awful as that ever happened here.

I'd be… so grateful if you took a few pictures.

There's so many people who came here, with memories of this place.

Sure.

[distorted laughter in music]

Do you really think it's related to the resort incident?

Timing's a little odd.

I think it's highly suspicious.

Yeah, you think?

Yoonsu Do dies a week after the incident,

and we initially figured he'd just died of natural causes,

an illness that we didn't know about.

It was only a day after his police questioning.

And he was stressed out over everything at the company.

If the killer wanted to hide their tracks, they could've done so.

It would've been easy to make the death look natural.

But instead they inject him with a suspiciously high dose of insulin.

Why?

Because they didn't want his death to go unnoticed in all this chaos.

So, my conclusion…

his death is unrelated to the resort incident.

Then what's it related to?

Yoonsu Do… Chimok Kang.

It has to be related to their connection.

[beeping]

[♪ mysterious music]

What's all this stuff?

[Hansaem] Where is this place?

It's an actual amusement park?

Just like the puzzle drawing.

Dream Land.

It opened back in 1990.

And this month, it'll be shutting down.

You went there today?

There must be some good reason

that this actual place is drawn into the puzzle.

We haven't found a connection between our four victims,

and there haven't been any accidents at this park.

[inhales deeply]

So, what's so special about this place?

[sniffs]

Did you go to the beach?

You smell like the ocean.

I went to Yangyang to meet with the contractor building the resort.

[sniffing]

Hey, but don't you think it's possible that the killer just made a mistake?

What if the killer moved quickly because they knew you met with Yoonsu Do?

They didn't expect that.

So, it completely derailed what they had planned…

And maybe they just messed up.

You think a perfectionist, who, with one exception,

killed three people without leaving any evidence,

who made a jigsaw puzzle depicting an actual amusement park,

suddenly messed up?

Like I've told you before,

no one in this world is perfect.

This is my gut feeling.

No way.

If they made a "mistake,"

it's probably still part of their larger plan.

[chuckles]

-[Ena grunts] -Where are you going?

Hey!

[door opens, closes]

What are you doing?

Just going for a walk.

[car door closes]

[♪ upbeat music playing on radio]

-[door closes] -[seatbelt clicks]

There's no connection between Dream Land and Yoonsu Do at all?

Yoonsu Do wasn't involved with Dream Land's construction, for example?

Come on, what did you find?

[sniffs, clears throat]

[tires screeching]

[engine revving]

[♪ upbeat music playing louder]

[Hansaem] Hey. Hey, hey, hey! Slow down, kid!

Are you delirious or something? What's wrong with you?

Are you crazy?

-[tires screeching] -Holy shit!

That's a stop light--

Hey, watch out, there's a car! Car, car, car!

[Hansaem grunts]

-[engine revving] -Jesus!

Isn't it like riding a roller coaster?

Isn't this fun? [laughs]

What, do you go street racing every night? You gotta slow down!

[heavy breath]

[engine revving]

[♪ music fades]

[♪ brooding music]

Get out.

Get out!

This is the police. Please cooperate.

If you refuse, you will be put under arrest.

God…

[Ena] Let him go.

Let him go, why?

I'm the one who hired him.

I wanted to know who's stalking me.

What do you mean?

Are you telling me you hired this guy to find out who was following you?

[clicks tongue]

[sighs] You ruined it.

[mouthing]

Uh, why are you here so early?

[Hansaem] Sit down. [clicks tongue]

I heard you were first on the scene at DH Construction.

Yeah.

Were you also the first to confirm

that the security footage on the 30th floor was erased?

Yes, I was. Why do you ask?

[breathes deeply]

Hey.

Let's go back to the crime scene. There's something I need to check.

I still need to watch the footage of the first-floor lobby

and compare it to Canon Tower's entry records.

Man, there are so many people. Over 2,000 entries.

It's such a headache.

I told you to give me that! [clicks tongue]

Come on.

[groaning sigh]

Hi, I'm Lieutenant Hansaem Kim, the officer you spoke with earlier.

-I just have a few questions to ask you. -Oh.

Is there anything in these pictures that… that strikes you as a little off?

For example, do you notice any items that don't belong to Mr. Yoonsu Do?

Please look at them closely.

Uh… I'm not sure.

I think those are all Mr. Do's things.

What are you looking for? I checked all those already--

Here, take a good look.

[sighs] Huh?

What?

There's no handkerchief.

Handker… Wh-What handkerchief?

Here. Here, next to his slippers, there was a handkerchief…

[gasps]

…on the evidence list.

Uh… President Do didn't use handkerchiefs, as far as I'm aware.

Are you sure?

Yes.

It was right… right here. R-Right here, like this.

[Hansaem] Hmm…

Now try to remember

what's different between this picture and what you saw when you arrived.

No, I know what I saw.

There were business cards and pens on the ground,

and next to the acupressure slippers was this ratty old handkerchief.

The kind that old guys use.

You were the first one here. Who came here after you?

Lieutenant Ro, Youngha, Captain Yang,

and the forensics team, yeah.

Lieutenant Yoon came too.

[sighs]

[officer 1] Can you make a note of this?

[officer 2] Yeah, okay.

[officer 1] Take a picture here too.

I'll take them now.

[camera shutter clicks]

I'll dust for prints here.

The prints of the employees.

[camera shutter clicks]

Forensics

R-Right here, it was on the floor right here.

[clicks tongue]

Are you sure?

You'd better be certain.

This is very serious.

Yes, I'm sure. I remember it clearly, uh…

'cause the handkerchief was so totally messed up.

Why didn't you mention this to me before?

Well, I just assumed it was one of the victim's things,

and forensics was at the scene too,

so they'd be collecting it.

I mean, what else could I have possibly thought?

In any case, I'm sorry.

This might be a slip-up.

Or it could be intentional.

What was that, sir?

Never mind.

Well, thanks for telling me. And San, listen to me.

This is an incident. It's a major incident.

I need you to promise me one thing.

Don't breathe a word of this to anyone.

Understood?

-You're not answering. -Okay.

[breathes deeply]

Captain, I have something to… [breathes deeply]

I mean, I need your help, sir.

Could it have been the victim's or not?

No, it wasn't.

I've already asked around, I asked his chauffeur and his family.

He never carried a handkerchief with him.

He also never wore hats, gloves, scarves, or anything like that.

San has no reason to lie about what he saw.

Which means…

it's looking like someone took it from the scene.

Yeah.

Captain, I have no doubt.

Either the killer or their accomplice is within Hangang Police.

All right then.

San cannot tell anyone. Keep an eye out.

Yeah.

[♪ pensive suspenseful music]

Calling… Ena Yoon

[line ringing]

God, why is she still not picking up? [groans]

[engine rumbling]

[♪ foreboding music]

[tires screeching]

-[seatbelt clicks] -[phone buzzes]

Ena Yoon The One City unit 5802

Ena Yoon Passcode 87654321*

[keypad beeping]

[door lock clicks, chimes]

You breaking and entering again?

[clicks tongue]

My place wasn't enough?

You wanna hang around a dead girl's home?

[Ena] Just wondering.

Given that your mom lives so close to you,

why do you live alone?

Wouldn't it be weirder if I still lived with my mom?

Nope.

If I were you, I'd live in the nicer place,

even if it meant living with my mom.

[Ena clears throat]

[sighs]

Nah, it wouldn't work.

We'd both be uncomfortable.

When I was a kid, after my dad died, I wouldn't even let my mom date other men.

I insisted on keeping my dad's stuff.

It's easier for both of us to live alone.

You're way more screwed up than I'd realized.

You're incapable of putting stuff in the past, aren't you?

[sighs] You can't leave anything behind.

So…

we're here.

What do you mean?

This place is what Miyoung Lee, Chimok Kang, and Yoonsu Do have in common.

Miyoung Lee was the last owner of Unit 5802 of The One City.

Before her, Chimok Kang.

And before him,

this apartment's very first owner…

Yoonsu Do.

What?

Yoonsu Do used to own this place?

I knew there had to be something that linked these three people together.

And then, I remembered

what Chimok Kang allegedly said at Miyoung Lee's bar,

which was that her apartment was originally his.

Yanghee Seo told us the same thing.

How he'd given Miyoung Lee an expensive apartment.

What if what those three people shared

was a place, not a characteristic?

What if that place is this apartment?

So, once that occurred to me,

I immediately accessed the register

for Unit 5802 of The One City.

Comprehensive Property Register (including deregistration)

March 17, 2011 sold to owner Yoonsu Do

May 18 transferred to Kang June 11 transferred to Lee

Owner Miyoung Lee

Owner Chimok Kang

Owner Yoonsu Do

And Yoonsu Do

was the first name that popped up.

The question is… [sighs]

…what exactly happened here?

[♪ dramatic music]

[♪ closing theme music]