Recently, strange things began happening in the life of ophthalmologist Ekaterina Borodina: a handsome, impressive man came to see her, the kind you rarely see in a district clinic. And after work, he met her with a bouquet of roses. The patient didn’t seem very much like someone in love, and Katya couldn’t understand what he wanted from her… She felt uneasy ever since she saw Olga falling onto the asphalt. The car that hit her drove away. Katya ran to her nurse first and immediately realized: the injuries were hardly compatible with life… A few days before her death, Olga left a laptop in her office. Katya planned to return it to her friend’s husband, but first decided to delete the photos from it and stumbled upon a strange video file: a couple riding on a lake, then a guy suddenly starts rocking the boat, the girl in terror clings to the side—and in the next frame she’s gone. What kind of recording is this, who is shown in it, and what does any of it have to do with Olga? Could it be that she witnessed a crime and paid for it with her life?