Kata and Arnar finally believe that they have come on track with the serial killer, but the investigation leads them to the paths they least expected. Difficulties in their private life take their toll.

Unexpected events in the investigation of the case prove to be heavy for both Kata and Arnari. She has a hard time letting go of the ghosts and ghosts of Arnar's past, whom he has long tried to keep in check, to reclaim.

Despite being licensed, Kata continues her investigation. Arnar tries to help but is in full swing with himself and the past.

Kata is determined to achieve justice, but it proves difficult and the obstacles are wide.