Thulin and her reluctant new partner, Hess, investigate a gruesome murder. Politician Rosa Hartung returns to work after her daughter's disappearance.
Hess uses unorthodox methods to prove a theory about the Hartung case. The detectives chase a lead linked to a text message. Rosa faces another threat.
When a disturbing discovery provides a lead to a possible target, Thulin and Hess hatch a risky plan to lure the killer.
The detectives find inconsistencies as they dig deeper into the Kristine Hartung investigation, while the threats against Rosa take a terrifying turn.
Neither Thulin nor Hess can stop thinking about the unanswered questions hanging over their case. Rosa's career unravels as a childhood memory surfaces.
As the pieces of the Chestnut Man mystery fall into place and the perpetrator's motives become clear, Thulin and Hess fight to save innocent lives.
Unsettling stalking evidence found on a missing woman's phone leads the Copenhagen police to re-examine an unsolved murder from two years earlier.
Developments in the case revive hope for grieving yet determined Marie. Meanwhile, a new father receives a disturbing email from a stranger.
A sinister invitation leaves Naia fearing for her safety. Mark pursues a new theory in the stalking case that leads them to a troubled married couple.
Reeling from a recent tragedy, Mark and the investigating team chase a dangerous suspect to a countryside inn — only to make a shocking discovery.
The police celebrate an apparent victory, but Mark is unconvinced. As he desperately digs for evidence, an eerie case from the past catches his attention.
As pieces of the chilling puzzle fall into place, the police race to uncover a hidden identity. But with time running out, will the killer strike again?