The sound of laughter kept coming from the ears, stimulating the nerves of the three of them. Lin Mad was fine because he had slept, but Qin Kai and Xia Xiaoai were already bloodshot in their eyes after being tortured by this voice for half an hour.

"I can't stand it anymore, what the hell is he going to do? Just smiling?" Qin Kai gritted his teeth and said angrily, he was completely different from what he was usual.

"I can't stand it anymore! I'm going to kill him!" Xia Xiaoai gritted her teeth, and then stood up and prepared to go to the kitchen to get a kitchen knife.

"Don't worry, I don't believe he won't get tired of smiling like this, let's wait and see what he wants to do. Lin Mad stopped Xia Xiaoai, who had already stood up, and said.

Another hour passed, and the laughter gradually became smaller, and the frequency was not as frequent as before, Qin Kai and Xia Xiaoai just leaned on the sofa, hugged the pillow, and fell asleep.

"Hahahahaha~" Around seven o'clock in the morning, that strange laughter came from my ears again, and the laughter was more wanton and louder than last night!

"I can't stand it! I'm going to kill him!" Xia Xiaoai threw away the pillow and prepared to go out and go downstairs.

"Me too!" Qin Kai also stood up, slapped his face a few times, and said.

"Then I'll go down with you. "Lin Mad was also a little sleepy because he stayed up all night.

The three of them did not take the elevator downstairs, but stepped on the stairs and came to the 21st floor.

When they opened the escape door, the door of 2101's room suddenly opened, and out of it came a short-haired boy who looked about seventeen or eighteen years old, carrying a black schoolbag, and looking full of student spirit.

The boy saw the three of them and smiled and said, "Hello." ”

"You...... Hello!" Xia Xiaoai's original murderous posture was instantly disintegrated by the boy in front of him who looked like a high school student.

The boy pressed the elevator and saw the elevator door open, so he said without looking back, "I'm going to school, do you want to use the elevator?"

"No, no, no. Xia Xiaoai hurriedly waved her hand to refuse, turned around and left, and pulled Qin Kai and Lin Mad up the stairs together.

"Aren't you going to kill him?" Qin Kai said sarcastically to Xia Xiaoai as soon as he entered the door.

"He's a kid, he doesn't look like the smiling man, and he's going to school, how can I stop him? Xia Xiaoai lowered her head and said with her fingers.

"Have you ever seen if he is an enlightened person?" Lin Mad said suddenly.

"Ahh ”

"Well, you can see through anyway, here tonight, look down and see if he's made of blocks. Qin Kai pointed to the ground and said.

"I can't see through anything that is too thick, and the wooden door is barely enough, woo woo...... I'm going to sleep, and I'm not going to go to the association today, President. Xia Xiaoai pouted, shouted and ran to the room.

"You all go to sleep, I'll go out. Qin Kai said.

"Where are you going?" Lin Mad asked, "Are you not going to sleep anymore?"

"I went to buy a surveillance system and I wanted to see why we all came to the living room in the middle of the night. Qin Kai said.

"Okay, then I won't come tonight, after all, I still have a second elder at home. ”

"Good. ”

That night, Qin Kai came back in a new car and took a bag of cameras from the car.

Xia Xiaoai slept for a day during the day, and she also recovered a little, and she saw that Qin Kai was installing a camera in the corner of the corner, and she also came to help him. When Qin Kai came to her room to install the camera, she said, "No, no, no! I can't install this in my room!"

"I'll remove the cameras when that's settled. Qin Kai explained.

"And what about me changing my clothes?"

"Doesn't your room have a private bathroom? These days, I have wronged you to go inside to change your clothes, and then remember to dress tightly when you go to bed, there will be no problem." Besides, I'm not uncommon to see it!"

"That'...... All right. Xia Xiaoai can only compromise, if she doesn't find out, she won't be able to sleep well.

At two o'clock in the morning, when the two were woken up by laughter again, they found themselves in the living room again. As soon as Qin Kai woke up, he immediately came to the computer and began to flip through the monitoring.

"Xiao Ai, look. Qin Kai shouted.

In the video, I don't know where to start the electromagnetic sound of "Zi~Zi~Zi~", I saw that they got up almost at the same time in the video, I don't know whether they were open or closed, walked to the door expressionlessly, and unlocked the lock themselves, and then came to the living room to lie down.

"What's going on?" Xia Xiaoai said in horror, "Hit the evil spirit?"

"I don't know, I don't remember anything about what happened. Qin Kai said.

"What can you see if you install the surveillance?hahaha~" The voice didn't know whether it was laughing at them or challenging them.

"Can you see us?" Qin Kai shouted at the ceiling.

"Remember, I'm everywhere!hahahahaha~"

"What the hell do you want to do?!" Xia Xiaoai also shouted.

"I want you to move out, otherwise I will come to greet you every day, hahahahaha~"

"Hahahahaha~"

"Hahahahaha~"

The laughter, as if by magic, constantly stirred at the most fragile nerves in the human brain. Every time Qin Kai and Xia Xiaoai heard it once, their scalps went numb once, and in the end, Xia Xiaoai couldn't stand it anymore, so she went to the kitchen and picked up the kitchen knife and rushed downstairs.

"Calm down!" Qin Kai was obviously angry, but he still restrained himself, and he shouted.

Xia Xiaoai ignored him at all, ran downstairs angrily, and knocked on the door rudely: "Open the door!

"If you don't open the door again, I'm going to slam the door. Xia Xiaoai said while kicking the door.

"Xiao Ai, let's go! stop making trouble!" Qin Kai took Xia Xiaoai's hand, but found that her strength was very strong, and he couldn't pull her at all.

"If you don't open the door again, I'll set fire to your house!" Xia Xiaoai said frantically.

Suddenly, the sound in their ears seemed to stop, and Xia Xiaoai suddenly came to her senses, looking at the kitchen knife she was holding in her hand, she panicked, and fell to the ground with a "bang".

Qin Kai hurriedly picked up the kitchen knife and dragged Xia Xiaoai back home.

Half an hour later, just as they had just gone to sleep, there was a knock at the door. Qin Kai opened the door and found that it was actually a policeman.

"Someone downstairs called the police, saying that you were disturbing the people and threatened him with a kitchen knife, we have gone to the property to collect evidence through the corridor video, and found that it is a woman, please let her go with us. The officer said solemnly.

"I ......" Xia Xiaoai walked out from behind Qin Kai and said, "I don't have ......"

"Please come with us. The policeman's words could not be refused, and he said to Qin Kai, "You also come here." ”

After the two obediently came to the police station, the police showed them the corridor surveillance. Xia Xiaoai in the video was knocking on the door like crazy, saying cruel words, while Qin Kai was pulling her aside, but he couldn't pull her.

"Officer, I really don't remember. Xia Xiaoai said aggrievedly.

"Whether you remember it or not, according to the law, I still have to detain you first. The police officer said.

"Detention, don't be good or bad, don't ......" Xia Xiaoai was helpless, and sprinkled coquettishly.

"Take it first. The policeman instructed the other officers and said to Qin Kai, "You can go." ”

Qin Kai watched Xia Xiaoai being taken away, and walked out of the police station with some loss. At this time, the sky was already bright, and the waning moon was like a pebble that had lost its luster, still thrown in the sky, reluctant to fall.

Qin Kai had nowhere to go, so he came to No. 222 Jianshe Road, squatting under the eaves at the door, waiting for Lin Mad's arrival.

"Why are you here?" Lin Mad came to the association early in the morning, found Qin Kai who was already asleep, and asked, "Where is Xiao Ai?"

"Xiao Ai, he was arrested by the police. ”

"Police?!"

Next, Qin Kai and Lin Crazy talked about what happened last night.

Lin Mad sat and listened carefully to what Qin Kai said, not missing a single detail. After listening to it, he always felt that something was strange, so he asked, "Can your surveillance be recorded?"

"Yes. Qin Kai thought for a while and said.

"Can you hear his laughter in the video?"

"Like...... I didn't hear it!" Qin Kai said dumbfounded, "I only heard the electromagnetic sound of Zi~Zi~Zi~!"

"That's it. According to what you said, you unlocked the lock by yourself, went to the living room to sleep, and then Xiao Ai went crazy, which means that you may have been hypnotized, including me at your house the day before yesterday!" Lin Mad said.

"Hypnosis?"

"Yes, I don't know how he knew you had a surveillance, but I guess your hypnotization must have something to do with the electromagnetic sound. Lin Mad concluded.

"Then what should I do?" Qin Kai suddenly felt that this matter was very tricky, after all, the other party was a person, and he was still a hypnotic person.

"Loaded. Lin Mad pointed to his ears and thought about it.

Xia Xiaoai was administratively detained for 7 days for disturbing the people, and tonight Lin Mad slept at Qin Kai's house again, and the two were still sleeping in the same room.

Each of them had a quilt and fell asleep early, and when it was almost two o'clock in the morning, Lin Mad took the lead in sitting up, and then Qin Kai also sat up. After leaving the door, only Lin Mad came to the living room to lie down, but Qin Kai walked out of the door with half-open eyes, like a zombie, and came to the door of 2101.

As if he had no strength, he lifted his hands with difficulty, knocked on the door, then put them down, and stood and dozed off for a while, then continued to repeat the same movements.

After nearly an hour of this cycle, there was a movement of unlocking the door. The moment the boy opened the door, Qin Kai immediately recovered, pushed hard, broke in, grabbed the boy's hand, and said, "Can you stop?"