Saga returns to work and dives in head first. She and Henrik find leads in a radical leftist group and a missing refugee as another body is found. Meanwhile, Saga continues to help Henrik investigate his personal tragedy.
A Swedish journalist and expert on radical leftist groups becomes a suspicious player in the case. Saga and Henrik also suspect that Taariq, the refugee, is hiding something. When Saga has a panic attack, she decides to go see a psychologist.
Taariq is at large and leads Saga and Henrik to a new lead, yet another person who might be hiding something. A new murder helps Saga figure out how all three are linked and that the killing will probably continue. Henrik runs into a familiar face.
The number of suspects grows and new suspicions arise surrounding the Sonnings. Everyone seems connected somehow. Saga has no luck with her private investigation for Henrik but makes an offer that will completely change their relationship.