Katya has a mystical gift, she sees ghosts. When her twin sister disappears, the girl alone rushes in search. The police insist that the sister does not exist at all, that she is the fruit of Katya's sick imagination. However, during the search for her sister, Katya understands that a serial maniac is operating in town, and her sister is one of his victims. There is still hope to save her, but in a gloomy, mystery-filled city you cannot trust anyone, even yourself.