Polizeiruf 110 is a long-running German language detective television series. The first episode was broadcast 27 June 1971 in the German Democratic Republic, and after the dissolution of Fernsehen der DDR the series was picked up by ARD. It was originally created as a counterpart to the West German series Tatort, and quickly became a public favorite.

Klaus Burg and his 18-year-old daughter Alina live in the witness protection program and have built up a new, modest existence in a remote fishing village in Iceland.

Kathleen Selchow has been working as an educator in a daycare center for many years and leads a harmonious life with her husband Robert and son Luca, who goes to elementary school. The experienced educator takes charge of the motley group of children on an excursion to the nearby forest. Suddenly, Kathleen notices that two children, Jenny and Nico, are missing. A dramatic search with a tragic outcome begins. From one minute to the next, nothing in Kathleen's life is as it was.