Chen Mo, an ordinary late-night deliveryman, was involved in the strange cycle of the "forbidden apartment". From his initial struggle for survival, he gradually revealed the supernatural truth and urban legend network hidden behind the apartment. The ultimate goal is to completely cut off the connection between the apartment and the real world, prevent it from continuing to devour innocent lives, and regain his memory and personality that were eroded by the "apartment", and return to normal life (or choose to become a guardian after understanding the truth of the world).