A young proofreader is prisoner of his apartment for two years. His name is Filipp, 30 years old. He’s convinced that an evil force wants to enter inside his apartment and take possession of him. Only the encounter with Sonia, the girl from the upper floor, will be able to open his eyes and make him realize that maybe everything he is living is the fruit of his immagination. But once again, nothing is as it seems: a well conceived trap by an unknown force is ready to catch him permanently.