Working as a profiler for the FBI Inger returns to Sweden with her two daughters hoping for a more balanced home and career life. Inger's elder daughter, Stina becomes an unwitting witness to a murder while attending a wedding reception with her family. The killer is now after her, but that is only the beginning.

Detective Ingvar Nyman of the Swedish police is dispatched to Uppsala to investigate.

The investigation now involves three seemingly unfathomable murders, but a link emerges.

More violence is unleashed as police believe they have found a motive.