Svetlana sets out to find her adopted daughter, who has disappeared in search of her real parents.

Svetlana sets out to find her adopted daughter, who left to find her real parents and disappeared. At the same time in this resort town, a thirteen-year-old girl shoots her sleeping family, after which she tries to hang herself. A neighbor comes running to the gunshots and pulls the girl out of the noose. The head of the police of the district entrusts the investigation of the high-profile case to investigator Elvira Barayeva. But how are Svetlana, a St. Petersburg judge with a dark past, and her adopted daughter Kira connected to this case and this place?