I Fix Air-Conditioner

The hearse with the weird odor slowed to a stop before the entrance. The sound of pebbles could be heard bouncing on the ceiling. There were footsteps coming from the corridor, and there seemed to be someone sawing next door. The door knob to the room rattled slightly, and the faucet in the bathroom kept dripping even though it had been screwed shut. There was a rubber ball that rolled on its own underneath the bed. Wet footsteps started to surface one after another on the floor. 
At 3 am, Chen Ge held a cleaver in his hand as he hid beside the room heater. The call he was trying to make was finally answered. "Landlord, is this what you meant by 'the house can be a little crowded at night'‽"

Millman97

My House of Horrors

Lonelytree

Daoist6fubtiW

Liu Xianxian had once caught Liu Zhe in this room talking to the detached head in the glass jar.

How suspicious. Chen Ge turned on the flashlight function, and the light hit the glass jar. Even after so many years, the human head in the jar still looked very much alive.

It's quite scary seeing these things at night. Chen Ge stared at the jar for a long time. The head seemed to be suspended in liquid and completely immobile. It did not wink or move, different from what Liu Xianxian described. To be safe, Chen Ge summoned Ol' Zhou's group to inspect the jar, but they discovered nothing weird.

The thing that possessed it has probably left already. Chen Ge was deep in thought, staring at the jar. The fact that Liu Zhe would talk with the human head suggested that there was something here that could possess these samples and communicate via these things that were suspended in jars.

Cadaver Walkway