Searching in the room, Bai Xiaoxiao helped Ning Qiushui hold the door in case some strange people came in.

For example, the man who ran wobbly last time and had blood-red eyes.

It didn't take long for Ning Qiushui to find a photo in the room.

The photograph shows a woman wearing a mask and a loose hospital gown and another man in a white lab coat with a big smile on his face.

This photo was taken at the entrance of the apartment complex.

At first glance, there was nothing strange about it, but the careful Ning Qiushui quickly discovered the problem.

"No, how can a woman's hospital gown be so loose?"

He frowned.

Generally speaking, hospital gowns are mainly made to make patients comfortable to wear and to allow doctors and nurses to identify patients at a glance.

So it's normal for the hospital gown to be bigger, but it's definitely not so big that even the shoulders are significantly wider.

This hospital gown obviously doesn't look like a woman got it, but it looks a lot like the man next to her.

And the white coat worn by a man is more suitable if it is worn by a woman.

"Are they wearing their clothes backwards?"

Looking at the two people in the photo, Ning Qiushui suddenly remembered that the old woman in 209 told her a sentence before.

That is, it is not a couple who live in 404, but a doctor and his patient.

There's something wrong with that.

That is an old woman who can't even remember Wang Fang, the landlord, why does she clearly remember that room 404 is full of doctors and patients?

And this old woman was still a little puzzled when she said this before, and it seemed that even she didn't know why she remembered it.

The old lady herself thought that she was told by the police officer when she was questioned.

But Ning Qiushui felt that things were not so simple.

In the memory of this old woman, if it was just a casual sentence mentioned by the police more than 20 years ago, she would not have remembered it for so many years.

The fact that there was a doctor and a patient in room 404 must have left a deep impression on this old lady in some way, so that she would remember it clearly after decades, even though she had a very bad memory.

"The people in this apartment don't feel very mentally normal......"

Ning Qiushui's eyes were like water.

Whether it is Jiang Ah Si or his girlfriend Ah Xi, or the female victim who always thinks that her right side of her body is too fat and uses a knife to cut her flesh, they all have mental illnesses.

And this is the method by which the "murderer" hunts his prey.

His prey was not "killed", but "sick and died".

Compared with the traditional method of killing, this kind of murder is obviously more secretive and unpredictable.

The police can't catch people.

Because the murderer did not kill them with his own hands, and did not leave any traces of the crime.

Murderers know how to silently invade the spirits of their prey, causing them to suffer from "psychosis" that will force them to their deaths, and finally let them end themselves or slaughter each other.

My mind returned to the shabby photograph in front of me.

"Men are doctors, women are patients."

"But if their clothes are worn backwards, does that mean ...... In fact, women are doctors, and men are patients? ”

"Why is he wearing a doctor's clothes?"

Ning Qiushui stared at the woman in the photo, looked at it carefully, and always felt that this woman's eyes seemed to have been seen somewhere.

Where have you seen it?

Since Ning Qiushui didn't meet many people in this copy, he just checked it a little, and found that this woman's eyes were very similar to the old lady living in 209.

"Qiushui, what did you find?"

Bai Xiaoxiao saw that Ning Qiushui had been looking down at the photo, although she knew that the murderer would not kill any more people today, she still couldn't help but worry a little, so she asked.

Ning Qiushui raised the photo in his hand and informed Bai Xiaoxiao of his discovery.

The latter came over and looked at it, and said what he had guessed in his heart:

“…… The murderer is good at using people's inner subconscious and mental control, so he should be a master of psychology, such a person is either the attending physician of a psychiatric hospital, or a mental patient who has been treated for many years. ”

"I know a very good psychologist in Kyoto, and he told me to be extra careful when interacting with some psychosis, because some psychosis have some cognitive impairments, they are just crazy, but they are not stupid, and they are even much smarter than normal people."

"There was a special case in the No. 4 Hospital in Kyoto, when she interacted with her own attending doctor, she even learned the doctor's method of hypnotizing her, and then in turn controlled her attending doctor through hypnosis and escaped from the psychiatric hospital......"

"Looking at the picture of the situation, it seems to be somewhat similar to it."

Hypnosis.

In a way, it's also a form of mind control.

It's just that it's not as terrible as the murderer acts.

But the murderer is not a human, but a "monster".

It is also expected to magnify some of the abilities that belong to people.

After all, this is the world behind the door, and anything is possible.

"If the guess comes true, then this woman should be a man's psychiatrist, but in the process of contact, she was brainwashed by this man and completed mind control."

"In the end, their identities were reversed."

"So it looks like the clothes they're wearing don't match very well."

Bai Xiaoxiao is not a fuel-efficient lamp, her mind is active, she has more people and things in contact with outside, and her horizons should be broadened.

"But I have a question that I'm curious about......"

"The woman in the photo should be the old lady of 209...... In other words, she did not die in the apartment massacre more than 20 years ago. ”

"But the murderer killed everyone in this building, but left this old man behind, is there anything special about her?"

Bai Xiaoxiao was puzzled.

Things have developed to this point, and both of them have some speculation in their hearts, that is, this "murderer" is likely to be the patient who pretended to be a doctor in Room 404.

But they don't have enough evidence right now, so they can't be entirely sure either.

In case they misjudge, there is big trouble.

Bai Xiaoxiao's experience taught her that the 'police', as the only means to end this mission, would not let them drive at will.

If the 'police' come and they identify the wrong murderer, then they will most likely pay a very heavy price for it!