In the red-light district of Amsterdam, the dead body of a man is discovered. Commissioner van Leeuwen and his squad have to deal with a series of mysteries to get to the bottom of the case.

Teacher Gerrit Suicker's body is found murdered in Amsterdam's Red Light District. A prostitute lies to the police but says she saw the murder on the radio during a call-in program.

Thanks to the latest DNA technology, Bruno van Leeuwen finally has a proof in his hands, with which the rapist of the then nine-year-old Vicky can be convicted. Piet Martens, the neighbor of the girl's family, was the culprit. But despite the new evidence, he can not be brought to justice because the crime is now time barred. Martens leaves the police headquarters as a free man. Then Vicky falls on Martens and hits him with a bottle. The police separate the two and Martens' lawyer reports to Vicky about dangerous assault.