A woman found brutally murdered at Peberholm. The victim is Margrethe Thormod, Director of the Danish immigration service in Copenhagen. A possible motive could be the scandal around a deportation proceedings, which recently hit Margrethe personally. Henrik Sabroe begins investigating the macabre murder with his new colleague Jonas Mandrup.
When Saga is absolved of all charges and released, Henrik gets her involved into the ongoing investigation. Saga is able to work again, but started suffering from panic attacks.
Henrik and Saga suspect that Taariq and the missing expert on left-wing radicals is hiding something, and collaborate to reveal them. They disagree on how to handle the homeless girls who still refuse to give up their identity.
Taariq recognizes a car related to the case. He wants to push the owner for money, but is himself accused of robbery. Saga fears that will be more murders and Henrik's efforts for the homeless girls ends up in disappointment.
The number of suspects in the investigation keeps growing and some uncomfortable truths about the Sonnings couple are revealed. Lillian is under heavy pressure from the Danish police authorities, who wants to make a quick arrest. Saga continues to go into therapy and Henrik begins to slowly accept the fact that his daughters will never be found.
Henrik believes he found the connection between all victims and an unexpected finding ends up on the investigation board. At the same time, the crack between him and Saga is greater than ever.
The inquiry into Tommy continues and Solveig still refuses to cooperate. She talks neither with Saga nor Jonas. The question is how long they can keep her in holding if they do not obtain any evidence. Lillian is still under pressure from the management to find the culprit, and now it seems that there is a leak in the department. In the meantime Saga makes a breakthrough in the search for Henrick's family.
Running for their lives, Julia and Ida trying to contact Henrik to tell, who the killer is. Although Saga have the killer on the tracks, is it all really as it looks?
