Inside the old building, the roof lights were bright and warm yellow, but they shone on people's faces without any vitality.

Everyone was exhausted after all that running around so late. Fu Hange dozed off to the side, automatically blocking out the noise from the outside world.

Tang Yehua examined the victim's wounds thoroughly, inside and out, and finally asked, "What was the secret room like back then?"

Lily held a small notebook: "We just pried it open without paying much attention. Before we came, it was as if nothing had happened here, and the door was locked."

"That means you destroyed the scene. Now the door is open, and we can't reconstruct the whole crime."

Lily lowered her head, holding her notebook in her hands, deep in thought.

Tang Yehua observed the place carefully again. It was a two-bedroom apartment with a kitchen and a living room. The decoration was very simple, and there were even unfinished instant noodles on the table.

So, this person must have been murdered unintentionally. He was eating instant noodles when he was killed.

Tang Yehuai entered the house again. Although there were two rooms, it was clear that one room did not have a wardrobe, while the other room did, with a pile of men's and women's clothing.

If that's the case, they might be sleeping in separate rooms, or it might indicate that their relationship isn't good.

He went outside into the stairwell, trying to figure out how the murderer managed to get into the locked room he had created after committing the crime.

Tang Yehuai frowned deeply. There was a handrail on the door, and below the handrail was a keyhole. Tang Yehuai said to Lily, "Do you have a small key?"

Lily immediately said she had it and gave it to Tang Yehuai.

He inserted the key into the lock and tried turning it a few times. As he expected, it could be opened normally from the outside.

Tang Yehuai then asked, "When you found it, what did you use to pry open the door?"

“We opened it like you did back then, but the door had a security door that was locked from the inside.”

Tang Yehua laughed. That's it. If a first-time offender knows how to fake a locked room, then he thinks even mice can fly.

But how did he manage to lock the door after he came out from inside?

Especially when committing a crime on a whim without any tools.

"Did you find anything?" Tao Yiqiu asked.

Tang Yehuai shook his head: "We should be able to get more data by taking the body for an autopsy later, but locked-room cases are not my forte. As you know, I'm just someone who dissects with a knife."

Tao Yiqiu nodded and turned his gaze to Fu Hange, who was sleeping soundly on her back in the chair.

It's strange, she was originally recommended by the bureau chief, so how come... her work efficiency is like this...?

Tang Yehuai seemed to see through his thoughts and patted Tao Yiqiu's back with amusement: "Forget it, don't make things difficult for the young girl. Find someone to take her home so she can get a good night's sleep."

"You little rascal!" Tao Yiqiu joked, pointing at him.

When Fu Hange was woken up by a group of people, she was sleeping soundly. Her morning grumpiness kicked in again, and she pushed away the person who was patting her.

Caught completely off guard, Tang Yehuai slammed straight into the wall.

Fu Hange was startled, and her sleepiness immediately vanished: "I'm sorry... I didn't mean to."

Tang Yehuai, his face contorted in a grimace, pressed his hand against his injured area and joked, "You really went all out. Who would want you in the future?"

Fu Hange never expected herself to be so fierce, and she quickly apologized to him, which made Tang Yehua feel embarrassed in the end.