In Fortune Apartment lives a single 48 year old rich man called "Landlord Shi". He has a strange personality and a bad temper, and all his tenants dislike him. Even weirder is that the 7th floor of Fortune Apartment is a restricted area, none of the tenants are allowed to go up there. However, one day, Landlord Shi was found dead lying in a pool of blood, someone had given him a heavy strike on the head. The 5 tenants in the apartment immediately became the top suspects. Was this an accident or a planned murder? Visit the scene of the crime, it is up to you to find the real killer.