OCD

Men Nan refused to sleep and stood stubbornly in the middle of the room. He maintained that weird posture of someone trying to push his head off from his neck.

"I keep feeling there's something pressing on top of his head." Afraid of rattling Men Nan, Chen Ge kept his voice lowered. "Not a psychological threat but something that exists in reality."

Doctor Gao waved his hand surreptitiously as he stayed beside Men Nan. He pulled out his phone and messaged someone with it. Since Doctor Gao did not reply him, Chen Ge wandered off to inspect the other rooms in the small apartment.

The place was just over thirty square meters, but it had everything: a bedroom, living room, and a standalone bathroom.

It does look like a normal rental apartment.