When a dead girl is found in Weerribben National Park, the investigation assumes a sexual offence. Behavioral expert Anna van Kessel is called in and a race against time ensues to prevent the perpetrator from striking again.
A suspect is arrested for the murder of Daphne Oosthoek, but Anna has the feeling that the real perpetrator is still free. As a result, tensions between Anna and her team members continue to increase.
The killer has created a new victim and more and more people involved seem to be hiding something. When a prime suspect flees, a manhunt ensues. Then Anna gets bad news.
The serial killer appears to have been unmasked and imprisoned, but Anna holds her doubts. When she goes to Giethoorn for further research, she makes a shocking discovery. She ends up in a life and death struggle to bring the truth to light.
