That night when the blood moon came, the mental hospital went crazy first.
There is a non-existent patient in ward 307. The thirteenth floor, which has been sealed for many years, turns on again in the early morning, and the announcement at the end of the corridor calls out the name of the person on duty. Some people just looked back and died suddenly on the spot; some people did nothing, but seemed to have violated some invisible rule and were dragged into the darkness and disappeared completely.
Everyone thought it was a blackout, a hallucination, a collective panic.
Only Lu Chen, the night shift nurse, knew that it wasn't that there was an accident in the hospital, but that it was turning into a real strange story about rules.
Because since the blood moon appeared, there was something extra in his eyes.
He can see the hidden rules and the death reminder above everyone's head.
[Don't answer calls in the hallway after two o'clock in the morning.
[Do not look at the extra patients in Ward 307 for more than three seconds.
[If the elevator stops on the thirteenth floor, don't count the doors.
Relying on his eyes that could see through a dead end, Lu Chen could only lead the survivors to survive while finding a way to leave the hospital.
But when he finally approached the exit, he realized that this hospital might not be the only one that had become a copy of the ghost story.