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.

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.

Thulin and her reluctant new partner, Hess, investigate a gruesome murder. Politician Rosa Hartung returns to work after her daughter’s disappearance.

When another employee from the boarding school is found murdered, Dan directs his suspicions at the school staff. But the evidence he finds there helps him realize that he had…