Jiang Che and Su Xiao, one is a calm and sinister reasoning expert, and the other has a sensitive constitution that can sense Yin energy.
Accidentally breaking into the murderous building numbered 074, they were forced to be involved in an infinite loop of horror games - cries at midnight, black shadows crawling out of the mirror, corridors that can never be exited, deadly traps hidden on every floor, and ghosts to play every night.
"Passing conditions: Survive in the murderous building for 7 days and find out the source of the curse on each floor."
Jiang Che relied on careful reasoning to solve the puzzle, and Su Xiao relied on her special physique to avoid danger. The two went from being wary of each other to becoming a tacit partner.
As the curses on the floors pile up, the mastermind behind the scenes gradually emerges, and they discover: the horror of the murderous building is far more than just ghosts!
