A 17-year old girl's disappearance in 2016 shakes the small town of Korsør to its core, igniting a desperate search — and fear among its residents.

After several wrong turns in the investigation, the trail seems to grow cold. Until a final, brutal crime leads the police to the perpetrator's door.

The suspect's friends are left reeling at the shocking arrest — and are forced to reassess their feelings towards the person they thought they knew.