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.

French Lise and German Cedric are newly in love in Copenhagen, but Cedric is soon moving to New York, so time is running out. Do they have a future together?