The most anticipated Russian film thriller of 2018 with Alexandra Bortich in the title role. This novel of the same name, created based on it, plunges into the ghostly world of parapsychology, where the real and the imaginary are combined into a kind of force that helps both people and souls. The book contains many additional plot devices and subtle literary psychologism, allowing you to penetrate even deeper into the complex inner world of the characters. Katya has a mystical gift: she sees ghosts. When her twin sister suddenly disappears, the girl sets off alone to search for her. The police insist that the sister does not exist at all, that she is a figment of Katya’s sick imagination. However, in the process of searching for her sister, Katya realizes that a serial maniac is operating in the city and her sister is one of his victims. There is still hope to save her, but in a dark city full of secrets you can’t trust anyone, not even yourself...