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.
Denmark, 2013. Police officers Carl Mørck and Hafez el-Assad, sole members of Department Q, which is focused on closing cold cases, investigate the disappearance of politician Merete Lynggaard, vanished when she and her brother were traveling aboard a ferry five years ago.
Parents tell the story of two parents who attempt to fill the void in their lives after their child moves out. Left with a feeling of needlessness, they try to rekindle the magic sparks from their younger days, returning to their old student apartment where they first fell in love. When one morning they wake up feeling thirty years younger, they are forced to come to terms with the fact that the past they once knew might no longer exist.
