A bike messenger sees a girl brutally attacked and dragged into a van. She alerts the police immediately, but unfortunately the girl is found too late. Detective Inspector Irene Huss and her team start looking for the killer, but have very few clues to go on. When another young girl is murdered in a similar way, the team realizes that they are dealing with a sexual predator. How does he get in touch with the girls? Why do they agree to meet him? Why do they have the same brand of underwear? (thetvdb.com)