The brutal murder of a young girl launches an extensive police investigation that threatens to derail a political career and a police woman's planned retirement.
The body of the missing student is found in an abandoned car. Suspicion falls on local politician Troels Hartmann when it is found that the car is registered to his campaign office.
Sarah delays her departure for Sweden, and she and Meyer purse the hire car driver. After receiving vital information, they return to the school where they make a grisly discovery.
Sarah and Jan realise that Nanna's girlfriend Lisa is more involved than she lets on, and the investigation focuses on the school and one of the teachers. Meanwhile, Hartmann fires Morten.
When the high school teacher, Rama, is identified as a suspect in the killing of Nanna, Troels Hartmann panics. Rama is one of his immigrant role models and part of his election campaign.
Sarah cancels her trip to Sweden and Meyer is not happy to have her back. Meanwhile, the police hone in on the teacher, Kemal, as their main suspect and Troels is in danger of being demoted.
School teacher Rama Kemal is still the main suspect in the young girl's murder, and Sarah and Jan pursue him relentlessly. But is he really the young girl's killer?
Meyer and Sarah suspect a cover-up when they're told to stay away from Troels Hartmann, but Sarah pursues the case and finds a Liberal party reception room that looks like a crime scene.
The spotlight of the police and media is now trained on Troels Hartmann, and he feels his political career is crumbling. Meanwhile strange things are going on at the town hall with fatal consequences.