Gao Cheng closed the wooden door from the inside.

The latch is a simple iron rod, and the door is only an iron hook, and although it is not complicated, it is quite difficult to latch it from the outside with any tools, at least in this studio.

But it's not like you can't make a secret room......

Gao Cheng held an iron rod with obvious friction marks, which looked very new, and there were also many scratches on the door, especially above the hook, there were impact dents in the left and right areas, which could vaguely match the iron rod.

It is not necessarily that the police did not find these traces during the inspection, but they did not pay attention to them, because they alone do not mean anything.

Gao Cheng closed his eyes slightly, supported his chin and walked to the position where Lin Yuan Momoka was hanging again.

At that time, there was another suspicious point, he remembered that the heel buckle of the hem seemed to be loose.

Different from ordinary modern socks, the undergarment worn by Mooka Hayashihara, also known as foot bags, is an ancient Japanese sock, which first appeared in China and is a sock specially used to match clogs.

Unlike in the past, the foot bag was buttoned with a button, and now the metal hook is mainly used, of course, no matter what, it is strange that the heel of the Hayashihara Momoka foot bag is not buttoned, even if you don't wear clogs, you have no reason to loosen the button when you commit suicide, and ......

Gao Cheng thought about picking up the iron rod and looked up at the beam again.

If the murderer had loosened it, it would have been possible to use the two feet of the corpse to cover the iron rod, and the marks on the two wooden doors would not seem to be so simple, and there must be some connection in between.

"Wait."

Gao Cheng's gaze swept over the wooden door, and then looked back sharply at the beam.

The position of Lin Yuan's Momoka hanging is really strange, and it happens to be facing the middle of the two wooden doors with her back......

From the wooden door on the latch inside, the latch and the marks of friction and even impact on the door, the corpse hanged with his back to the exit, don't buckle the loose foot cover...... And finally......

Gao Cheng looked at the faint rope scratches on the beams of the room, squinted his eyes slightly, details flashed in front of him, all the surroundings were virtualized in the rapid operation of his thinking, and the scene seemed to go back in time to the time of the crime again.

"I see."

……

"What the hell is going on? Why are we all called here? ”

Outside the waiting room, everyone in the crew was confused and brought over by the canine criminal police.

Inukai couldn't figure out the situation and said, "Actually, the detective from Tokyo asked me to gather everyone over." ”

Everyone looked dissatisfied: "Momoka committed suicide, isn't the case over?" ”

"That's the way it is," Inukai said helplessly, "but he said he had to come over, and he had already made sure that Miss Momoka didn't commit suicide......

"What?" The director was irritable, "You're a policeman, why bother with him?" This is a secret room, and it is impossible to kill at all! ”

"Impossible?" Gao Cheng opened the wooden door and appeared in front of everyone, chuckling, "Why do you think it's impossible?" ”

"Do you need to say it? Just look at it and know it, right? Supporting actor Ryuji Iwasaki shouted to flatter the director.

"You know when you see it?" Gao Cheng looked at Ryuji Iwasaki, who was eyebrowning, and asked, "What did you look at again?" Just see the door bolted from the inside and think it's impossible? Then let me ask you, is the earth round or square? ”

Ryuji Iwasaki felt inexplicable: "Of course it's a round ......"

Gao Cheng asked, "How do you know it's round?" Can you see it too? ”

"This," Iwasaki Ryuji Shigo looked at the director, "everyone knows this......"

Gao Cheng smiled: "That means you can't see it, right?" ”

"It's two different things!" Ryuji Iwasaki said angrily, "Now it's a matter of the secret room! ”

"Then I'll show you if it's impossible."

Gao Cheng no longer paid attention to this supporting role, and turned to the Inukai criminal police and the director: "Everyone, I'll explain the murderer's secret room methods now, and I'll know if it's okay or not." ”

Inukai and several people looked at each other, and followed Gao Cheng into the waiting lounge of Hayashihara Momoka in disbelief.

Dummy props have been prepared in the house, and the scene of Momoka Hayashihara hanging has been recreated. Even the length of the rope and the suspension position are exactly the same.

"After the prisoner killed Miss Momoka, he hung Miss Momoka on the beam of the house like this, let's look at the way the rope is suspended," Gao Cheng pushed the dummy, "It's a pendulum, isn't it?" The prisoner used Miss Momoka's corpse to complete the secret room technique. ”

"How is this possible?" Inukai shook his head and smiled, "Could it be that the murderer can still let the corpse bolt the door by itself?" ”

"That's right," Gao Cheng handed the iron rod latch to the dog feed, "The technique is not complicated, a careful investigation can still find a lot of suspicions, Miss Momoka's foot sleeve buckle is loose, if the prisoner inserts the two ends of the latch into the gap between the buckles, and gently clamps the corpse's legs to fix the ......"

"Detective Joto," Inukai frowned, "It's all a case of a murderer, and it's possible that Miss Momoka let it go herself, right?" ”

Saying that, Inukai patted Gao Cheng on the shoulder, and said seriously: "I know that you detectives like reasoning, but you can't think that we police are fools because of this, we have also found out what you said, but it doesn't mean anything, and we also found evidence in Miss Momoka's personal belongings." ”

"Evidence?"

"It's a magazine used to cut words and spell threatening letters, and even the wheat flour you mentioned was found, which shows that Miss Momoka committed suicide because of the previous explosion......

"And what about the traces?" Gao Cheng walked to the door and pointed to the crash marks on the wooden door.

"What?" Inukai was stunned.

"If Miss Momoka committed suicide in fear of sin, did she also cause these traces?"

Gao Cheng didn't say much, and directly began to explain the murderer's last method.

"I just talked about the pendulum, where the murderer pulls the hanging corpse to the door with the door open, and when he lets go of his hand, the corpse swings in the opposite direction......

"At this time, the murderer closed the doors on both sides, and the heels of the corpses that came over again hit the door, and the iron rod would automatically bolt the door because of the impact."

Gao Cheng said as he simulated it with a dummy.

"But is it really that easy to bolt?" Inukai skeptical.

"Of course it can't be done at one time," Gao Cheng smiled, "There are a lot of marks on the wooden door and the latch of the door, the murderer must have tried many times in order to complete this technique, right?" ”

"This ......"

Inukai was speechless, and repeatedly looked at the iron rod latch in his hand and the marks on the wooden door.

It doesn't sound very complicated, but it's simple and excessive, but before Gao Cheng explained, he couldn't think of these things at all......

"Who the hell is the murderer?"

Everyone swallowed their saliva and looked closely at Gao Cheng's back.

"I don't know yet, but," Gao Cheng's gaze swept over everyone one by one, "the prisoner should be among you!" ”

"Huh?!"

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