The OBKhSS - the department for combating chaos, creatures and entities - faces a new task. Something bad is happening to the residents of the house in Kapotnya: murders, incurable diseases, accidents, and even otherworldly entities attached to them. We need to deal with the cursed house. Nikolai Dergunov takes up the investigation, but he is constantly distracted by something - either rumors about the strange appearance of wolves, or a case of possible lycanthropy... and problems arise in his personal life. No, it’s not for nothing that people say: “The further into the forest, the angrier the wolves.”