The plot of the series is based on the activities of the Special Police Corps, which is responsible for the investigation of serious crimes. The main activity of the unit is illegal actions against children and sexual crimes. The main characters of the series live and work in New York, and are employees of the Special Corps. Constantly faced with particularly cruel and sophisticated crimes, the heroes are often on the verge of a nervous breakdown and need the help of a psychologist. Difficulties at work also affect their family life, as well as relationships in the team.