Denmark, 2014. A former police officer asks Carl Mørck, head of Department Q, to find out who brutally killed his young twins in 1994. Although a local inhabitant confessed and was convicted of murder, Carl and his partner Assad soon realize that there is something in the case resolution that is terribly wrong.
After suffering a personal tragedy, and desperate for justice, Jacob Kanon, a veteran New York City police detective, embarks on the search for a twisted killer who is leaving a bloody trail of elaborate murders across Europe.
Inspector Amaia Salazar must return to the Baztan valley in order to solve a series of suicides that seem to follow a similar pattern.
