Be careful who you trust
Sarah Lund is looking forward to her last day as a detective with the Copenhagen Police department as she's moving to Sweden to be with her fiance. But everything changes when nineteen-year-old student, Nanna Birk Larsen, is found raped and brutally murdered in the woods outside the city. Lund's plans to relocate are put on hold as she leads the investigation along with detective Jan Meyer.
While Nanna's family struggle to cope with their loss, local politician, Troels Hartmann, is in the middle of an election campaign to become the new mayor of Copenhagen. But links between city hall and the murder suddenly come to light – and the case takes a different turn.
Over the course of twenty days, suspect upon suspect emerges as violence and political intrigue cast their shadows over the hunt for the killer.