Everyone shuts their homes up tightly in winter.
This is incredibly dangerous.
Carbon monoxide is an invisible killer.
Most people don't know about this.
They often think it's sleep calling, but it's actually death.
Another carbon monoxide poisoning incident.
We don't know yet if it's an accident or not.
Something feels odd.
My husband is afraid of the cold,
so, he often shuts the doors and windows.
Can you please tell me where you work?
I work at a spa.
What is that?
To the naked eye, it looks like a natural fiber.
Seeing as you get off work at such a late hour from the spa,
does your husband do all the housework?
My husband doesn't do any housework.
It's all done by me.
Mrs. Kuo says that she does all the housework.
He probably didn't fold that bathrobe.
Someone who doesn't do any housework
can't possibly fold a bathrobe so neatly.
From the bathroom to the sofa, it's especially clean.
Not much dust.
Someone obviously wiped away the water residue.
Livor mortis has formed on his body.
Rigor mortis has set in.
The corneas are a bit murky, lips have shrunk.
He has been dead for approximately 5 to 6 hours.
So, his time of death
is approximately between the hours of eight and nine at night.
Usually, in bodies with carbon monoxide poisoning,
apart from the livor mortis and blood,
their visceral and muscle tissue will have a pink appearance.
A healthy middle-aged man like him...
If the carbon monoxide in his blood is over 5.60%, he will die.
But I suspect that before Shih-Wei Kuo inhaled the carbon monoxide,
he was already drugged. And look here.
His heels both have torn skin.
I deduce he was dragged by someone, which caused these marks.
Because I found Shih-Wei Kuo had torn skin on both his heels,
and areas around his mouth and nose showed signs of pressure,
this shows his nose and mouth were covered.
If he was suffocated,
then Shih-Wei Kuo's body wouldn't contain
any carbon monoxide in the blood and his skin wouldn't appear pink.
So, he wasn't suffocated.
Someone drugged Shih-Wei Kuo on the sofa first,
then forcibly dragged him to the bathroom.
And judging by the way he was dragged,
we can deduce that the perpetrator is smaller than Shih-Wei Kuo.
It looks like this case is not just a simple accident,
but a possible homicide.
There's something here.
The fiber's pattern has irregular flakes.
It's gray and composed of wool, I'm guessing...
I'm guessing this is Bonjourno,
announced at Milan Fashion Week last month.
It's a classical sweater.
Really? That's impressive. It's like you often go to Milan.
If I had time for a vacation, then I would already be in Milan.
What? What'd you say? Is your mouth not working?
No. Just venting.
Venting about what?
No vacation days.
Want a vacation?
If you want a vacation, then tell the one in charge.
Silly thing.
Anyway, this is definitely a Bonjourno-made sweater.
We'll know after we compare it.
On December 9th, from seven to ten at night,
where were you?
I was near the counter that day.
I was at the spa doing a treatment on the boss.
She assesses our skills every month.
You have good skin.
Would you like me to give you a 2-hour spa treatment?
Ms. Chou, can you remember
if your husband had any disagreements with anyone?
Like any unpaid debts?
I can't think of anyone who has had a disagreement with him.
But if someone did kill him, please hurry and find the murderer.
My husband is afraid of the cold.
I don't want him to be cold in the freezer for too long.
Everyone at the spa has an alibi.
What did you buy? And you bought so much!
That pretty aromatherapist said
that aromatherapy oils have magical properties.
It refreshes the mind.
Refreshes the mind... Looks like you have sex on the mind to me.
This is Bonjourno's classical sweater.
Okay, okay. I can't win with you when it comes to fashion.
Alright? You win.
Dinner.
I owe you dinner.
What about your comparison results?
This fiber and samples from sweaters in the Kuo household are not a match.
I think it's from the murderer.
It was left behind as the crime was being committed.
In the Kuo household, no Bonjourno-made clothing was found,
so, it's reasonable to assume the murderer left it behind.
Exactly.
Shih-Wei Kuo's blood has a 62% concentration of carbon monoxide.
This is the cause of his death.
As for the marks around his mouth and nose,
lab analysis shows the presence of isopropanol, rose oil and water.
The levels of isopropanol are as high as 80%.
This kind of makeup must be aromatherapy oils.
Rubbing alcohol is commonly used as a disinfectant.
It has a low boiling point.
It's easily evaporated and very easily combustible.
Most aromatic plants aren't dissolvable in water,
but are dissolvable in alcohol,
so, most manufacturers use alcohol as a solvent.
But isopropanol is poisonous. If it touches the skin,
it will cause a prickling, burning sensation.
Latex gloves must be worn for protection.
Gases from its combustion are also poisonous.
The air usually has 400 ppm,
but in highly concentrated surroundings, a person will lose consciousness.
Now, I want to be bold and guess that the murderer used essential oils
to cover Shih-Wei Kuo's mouth and nose.
After incapacitating him,
the murderer then faked a carbon monoxide poisoning,
fabricating an accident.
From the size of this shoe print,
we can deduce that the murderer is male and a size 9.
Last month, Skywalker came out with a new generation of shoes
with this kind of tread.
Really? You can tell just by this?
You can, too, can't you?
I can't.
You mean like this?
If you were murdered,
science will find justice for you.
Dad, when you go home,
remember to put your clothes in the washing machine.
I wouldn't dare forget. If your mom finds out,
then she'll be nagging me for who knows how long.
She has strictly instructed me, after coming home from an autopsy that
I should immediately throw my clothes into the washing machine.
You forgot last time and it was me who washed it for you.
I even hanged it out to dry.
You don't even know how to cook, but you took my clothes
and dried it so it looked like meigan cai.
When are you finally going to get married?
I didn't say I wanted to get married.
I'm already married to police work.
Anyway, I want to work with you forever. Does that scare you?
There's a boy who likes you pretty much.
What boy?
The murderer must be imitating Spiderman
and climbed up to Shih-Wei Kuo's home.
Then, he climbed in through an unlocked window.
He used this dumpster to help him climb.
Maybe.
So who wants to reenact the murderer's movements?
- Thunder Lei. - Chief.
You're not children. Hurry up.
Go on, then.
Go.
I've analyzed this piece of glass.
It is usually used in aromatherapy oil bottles.
Guys, I purchased too many essential oils at that spa,
so, I brought a few to give you all.
What's wrong with you? Why buy so much? Were they free?
No, thank you.
Where you going?
She doesn't like essential oils?
I don't know.
There's no need for that if you don't like it.
This is called destructive testing.
This proves that the glass shards outside Shih-Wei Kuo's home
and the bottle from the spa are made by the same factory.
So, I speculate the murderer stepped on
shattered essential oil bottles at the spa,
not knowing pieces of glass stuck to the bottom of his shoes
and brought to the Kuo household. And when he was climbing the wall,
the glass shifted and moved into the gaps of the wall.
That's it.
Then it's possible the murderer is the male customer or male employee.
But if it's a male employee, then it's obvious someone is lying.
Those who wear a size 9 shoe...
please step forward.
It's okay if you lie,
but don't blame your shoes for betraying you.
What can you tell me about your boss?
What's his relationship with his wife like?
The boss will sometimes offend customers.
It's his wife who cleans up the mess.
We all hate him a lot.
He appreciated me a lot. He wanted to promote me to manager.
He taught me much. So, I'm grateful to him.
What did you have for breakfast today?
Is it related to the case?
Yes it is.
Coffee and...
Look at me.
Your last customer yesterday... Male or female? Age?
What color clothing? Paid cash or credit?
Female. 35 or 36. Wearing a grey jacket. Paid cash.
Thank you.
Those first two aromatherapists, when they spoke,
they looked surprised and spoke loudly.
They were fully immersed in the conversation.
What they said was all true.
Yeah. They aren't afraid to admit that they hate their boss.
This shows they were being honest and didn't lie.
As for Wen-Kai Wen, he was lying, except about his breakfast.
Let me tell you,
when someone focuses on thinking up a lie to tell
and is abruptly asked an illogical question then they can't answer,
because they need to think about it.
But when I asked him about his last customer,
he already knew what to say.
Female. 35 or 36. Wearing a grey jacket.
Paid cash.
And that's why his lie was so detailed. A very quick and detailed response.
But if you think about it, in reality, how can we remember
so many details. Right?
You're amazing.
I'm gifted.
You took your time.
Cian Yang, that pretty aromatherapist just told me that
Wen-Kai Wen once complained that
their oafish boss didn't deserve his wife at all.
Also, the boss' wife wanted to set him up
with young aromatherapists, but he rejected the idea.
So, she suspects that
Wen-Kai Wen is secretly in love with the boss' wife.
I searched Wen-Kai Wen's home.
No sweater, gloves, sneakers, oils. Nothing.
There is no signs of wear on the shoeprint.
It could be a new shoe.
He threw everything away after committing the crime.
Finally, with the piece of glass, we had a suspect.
But now we have no proof to prove he's the murderer.
I'll look at his motives. Maybe there'll be a clue.
Mr. Wen,
I think you have a very special massage technique.
Where did you learn it from?
The boss' wife taught me.
That was nice of her.
You could say she's my teacher. I respect her a lot.
She seems like a nice person.
But her husband is gone. How will she cope?
Poor thing.
Yeah.
CIAN YANG LAW OFFICER
END CALL
I envy how much they love each other.
When he spoke of envy, his tone was different.
He was lying.
That feels nice.
Yes. Right there.
Where are you going?
To buy a drink.
At the same time?
How does a person who doesn't usually do housework
fold a bathrobe so neatly?
Mr. Wen?
Yes?
Did you fold my clothes for me?
Yeah.
Sorry. I've been busy.
So busy, I can't eventake care of you and let dust collect all over you.
One speaks to bodies.
Another speaks to plants.
I sincerely suggest that you both find a woman who can respond.
Someone who's alive.
No need.
Women are illogical beings whom I really can't understand.
Why pay so much for someone to touch you all over?
And in public places,
she farts without a shred of embarrassment.
If that's the kind of women you meet,
no wonder you're afraid of meeting anyone new.
That's up for debate.
Every pot has a lid that fits it perfectly.
Let me tell you, if you do fall in love,
then you'll be okay with all of her farts.
Really?
Even farts that smell like decomposing corpses are acceptable?
Of course. Love conquers all.
Nonsense. Love conquers all. Don't give him bad advice.
Let me tell you, if she doesn't love you
then you're importance in her heart is the same as a fart.
Understand?
Loneliness is intolerable.
Their reenactment looks so real.
You squeezed too tight! Do you want to suffocate me?
I take my work seriously.
That was too serious. It's just an reenactment, okay.
It should look real, but not be real.
Hurry up.
Turn.
You just tossed me.
Kao, don't actually climb down!
Roll up the window.
Do you want them to know we are surveilling them?
Right.
But your stinky tofu is stinking up the whole car.
What's wrong with your face?
You mean this?
A pimple.
A pimple that big?
Don't you know,
we live in a world where acne care patches exist?
Really?
Here he comes.
Mr. Wen.
Officer Yang. What a coincidence.
Yeah. I was in the area.
You're here to pick up dry cleaning?
May we see your sweater?
Don't run.
Cut him off.
What a coincidence.
You also have a sweater from this brand.
The wool fiber from the crime scene
and the sweater Wen-Kai Wen sent to the cleaners
both use the same material and dye. But this isn't much.
This only proves that these two wool fibers
come from the same sweater,
but it doesn't prove Wen-Kai Wen is the murderer.
Yeah. If only the murderer had left other smaller clues.
Skin flakes. Even dust.
Then at least I'd have more to analyze.
But I don't have much to work with.
We know this,
but the murderer doesn't.
Have you seen CSI?
That show looks so real.
Evidence from crime scenes for example,
like pieces of glass and wool fiber
and things like footprints.
We're god-like forensic investigators
that really can find who those things belong to.
Did you tell her to say that?
I didn't tell her to exaggerate.
The comparison results are out.
The fiber from the crime scene
is from that lovely sweater of yours.
And who else can fold clothes this way?
I think only you can.
What are you implying?
Why did you kill Shih-Wei Kuo?
When someone is hot, they'll start sweating.
But look at him.
Only his face and palms are sweating.
Cian Yang's accusations are making him nervous.
On December 9th at 7:00 p.m.,
you slipped into the Kuo household from the alley.
You drugged Shih-Wei Kuo using rose oil.
Then, made the crime scene
look like a carbon monoxide poisoning accident...
and left the same way you came, moving in secret.
If I'm wrong, please correct me.
You are very clever.
You immediately threw away the things you used in the crime.
But the strange thing is, you kept the sweater.
I think this sweater must be special to you.
Enough. I confess.
I am the murderer. I killed the boss.
You started out correctly.
I bought that sweater as a gift to myself.
And the essential oil... I mixed it myself.
He isn't telling the whole truth.
Due to guilt, a liar sometimes diverts their eyes.
Sometimes, they'll be more focused on you.
OK. So you believe him.
That's right. I just spoke of the sweater
and he added how he mixed the essential oil himself.
The relevance of the two things is maybe why Wen-Kai Wen lied.
While committing the crime, the murderer made a call.
The call lasted 13 minutes.
It was a call to the spa.
So then Wen-Kai Wen was alibied by?
Mei-Chun Chou.
He lied to protect Mei-Chun Chou.
Are you that hungry?
You won't be able to finish it, anyway.
By the way, one of the aromatherapists told me in confidence that
Mei-Chun Chou has been married 3 times.
All three of her husbands died the same way...
From carbon monoxide poisoning.
Isn't that strange?
Told you in confidence?
Then why didn't she tell me? I was there too.
She probably feels more comfortable talking to me.
Nonsense. You were asking for her number in confidence.
No, I wasn't.
Hsiang has a new girlfriend.
Even more surprising is
after she got the insurance, within 6 months
she opened a new branch and married a new husband.
So, I suspect this is her basic plan of defrauding the insurance companies.
And another thing. That aromatherapist also mentioned that
Mei-Chun Chou has a way with customers, especially with male customers.
What way?
Not what you think.
That settles it then.
I'm going to send someone in to find out more about her.
- I want to go. - Me, too.
Why choose me?
Because you're a little good-looking.
Do you think the oil used in the crime is there?
If the sweater can be found, then so can the oil.
Only a little good-looking?
Yes. Only a little.
Not much. About this much. Only this much.
Thank you.
So, you're saying Wen-Kai Wen has confessed.
Yes.
He may have confessed,
but no matter how long we interrogate him,
he still won't say why he did it.
In any case, this crime has been solved.
My husband wanted to groom him
into a manager and then let him manage another branch.
I didn't expect...
We were so wrong about him
and never imagined him to be so frightening.
That's right.
Really frightening people are often those you wouldn't expect.
Oh. Let me introduce my friend here.
Mr. Lei.
Hello.
He heard about your unique oils
and has been bugging me to bring him.
Welcome.
Are you two together?
That's impossible.
I'm sorry.
I have other business to attend to.
He's all yours.
I'll be back later. Thank you.
Not a problem.
What do you do Mr. Lei?
Why such an interest in essential oils?
I teach botany at a university.
Essential oils being botanic hormones, I therefore know a little about it.
The quality of these oils are the best.
It must have been hard to acquire all of these.
You have good eyesight Mr. Lei.
All of these essential oils are my treasures.
Look...
Like this bottle, which I mixed myself.
A unique bottle of rose oil.
This 50ml bottle of pure essential rose oil
took 10,000 Damask roses to make.
Even a small drop like this...
contains the souls of 30 roses.
In the past, upper class European women
would sprinkle perfume on their hands like this.
A fragrance is produced after rubbing it.
Then they breathed in the fragrance on their palms.
I remember seeing this.
If the fragrance in your hands
can make someone desire a kiss from you,
you'll feel a sense of superiority.
Mr. Lei, have a smell.
Sorry.
Sorry. Sorry.
Clumsy me. I'm so sorry.
So sorry.
Take it off.
You took so long.
Take off your shirt. Take it off.
How long was the rose bath you took with her
that made you stink like this?
If we didn't,
we'd have nothing to compare with the traces of oil in the victim.
It wasn't bad for you.
She had your soul.
You were happy to be there.
Invisible souls can't be seen by the eye. Your words have no scientific backing.
Mr. Lei,
why such an interest in essential oils?
Come. Let me tell you about this bottle.
It took 40,000 roses, of some kind, to make a small drop.
Come. Take a whiff.
Great impersonation.
No matter if it's from the body or around the mouth and nose,
they all match Mei-Chun Chou's unique oil.
You're awesome.
Now I can go arrest her.
Ms. Chou, we need you to come back with us to the police station.
What are you doing? Put down the phone.
Put it down!
There must be evidence on this phone.
Why else would she be quick to delete it.
She didn't delete anything on the phone,
she deleted something from her cloud storage.
Can we recover it?
Of course.
Why did she save it to the cloud?
Everyone has a phone these days.
And internet is everywhere.
If the criminal had the evidence saved to the cloud,
they have no physical evidence on them
and they can destroy it quickly.
Even if their phone or computer gets confiscated,
investigators wouldn't immediately find the digital evidence.
What are you looking at me for?
So, the police need to be smarter than these criminals.
What?
You're just cursing without being vulgar.
Calling me dumb?
You don't like me.
I found it. Found it.
You probably didn't know
that Mei-Chun Chou recorded the murder you committed.
This murder movie has three parts.
The first part is where Mei-Chun Chou's lover
killed her first husband,
and then, the lover naturally becomes her second husband.
But Mei-Chun Chou finds another lover
who turns out to be Shih-Wei Kuo.
And the story repeats itself.
If it is successful,
then you'll be the male lead in the fourth part.
No. Mei-Chun Chou won't do that to me. Those men were bad to her, so she...
Don't you think Shih-Wei Kuo thought the same?
For 11 years,
Mei-Chun Chou has been using the men who loved her to kill.
Why'd she do it?
In order to get the insurance payouts.
She told all those men the same story.
Perhaps there is love between you two.
I don't know.
But if you really do love her,
then you should stop her.
Don't let her make the same mistake again.
You're the only one who can save her now.
She didn't force me.
I did it all willingly.
Only when talking about essential oils, do I see her laugh.
And her smile was beautiful.
That man took away her smile.
Mei-Chun lost her fertility because of him.
He cheated on Mei-Chun and broke her heart.
I know that the person who can make her happy isn't him.
I told him at 7:00 p.m. I'll take my unique mix of essential oil home
and give him treatment.
Don't worry.
After you enter,
I'll use video chat to show you how to do it.
Only you can give me true happiness.
The men who keep saying they love you will still betray you in the end.
He already confessed. You have the video, too.
What else do you want?
I still want to know how badly you were hurt.
The one who cheated and caused your infertility wasn't Shih-Wei Kuo.
It was Chih-Yang Chiang, right?
As a mother, I couldn't protect my child. I can at least avenge him, right?
That man was the real murderer.
Look. She's subconsciously hurting herself.
The miscarriage... She blames herself.
She blames herself more than others.
He didn't betray you.
He just doesn't want you to do it again.
It doesn't matter what you did,
I'll always love you.
I can't understand how someone will kill for love.
Simply put, that was violence not love.
You.
Do you love me?
Is that a trick question?
Every pot has a lid that fits it perfectly.
Let me tell you, if you do fall in love,
then you'll be okay with all of her farts.
Really?
Even farts that smell like decomposing corpses are acceptable?
Of course. Love conquers all.
Subtitle translation by Chih-Chung Wen