Psychologist Shen Que was forcibly imprisoned in a sanatorium called "No. 7 Hospital". What is No. 7 Hospital? People in Wangcheng say that all lunatics, fools, and evil spirits are locked up inside. What exactly is behind the gray iron door. I thought it was just an ordinary rehabilitation center, with at most more difficult patients and new illnesses than before. But why, on the first day after coming in, I was pushed into the ward. Why do all the patients in Hospital No. 7 Have their conditions concretely presented? Is it an illusion, or has he really stepped into an alien space? There are seven wards, seven patients, and seven diseases. Shen Que must stay in each ward for 24 hours and make sure that he is alive and does not go crazy before he can leave Hospital No. 7. Let's escape from "No. 7 Courtyard", "Fantasy City", and "Crazy Man's Wish" together.