In their search for Kim, a clue leads Louise and Frederik to Sweden. Meanwhile, Kim hides with his stepdaughter in a remote cottage. Louise and Frederik track Kim down, only to discover yet another devastating crime.

Under interrogation, Kim confesses to the old double murder and the killing of his girlfriend, but not to the murders of Patrick and Pernille. Dismantling Kim’s alibi, Louise has reason to come up with a new theory.

A revelation from Kim’s stepdaughter puts the spotlight on Kim’s old gangleader, Robin. Meanwhile, Kim is warned to keep silent, and an attack on Robin’s gang hints at an imminent gang war. Robin flees with his family.