After Sophie and Jessica had witnessed a brutal crime when they were kids, Jessica promised her younger sister Sophie: "I will always protect you!" Growing older, this promise became an obsession. Now, Jessica (28) is suffering from paranoia and sees threats to her and her sister everywhere. But Sophie (26) wants to live a normal life without fear, without her sister. She wants to become a pianist and wants to fall in love. When the perpetrators are released of prison after 20 years, Jessica is shocked and wants to confront them. But an accident changes everything. Jessica's promise to always protect her little sister turns into an existential nightmare.

Berlin: Hauptstadt korrupter Populisten, zynischer Journalisten und fieser Gangster. Regisseur und Drehbuchautor Niki Stein hängt sich mit seiner Story weit aus dem Fenster: Im Hals einer Frauenleiche am Husumer Strand steckt ein Papier mit der Handynummer des Starreporters Kress (Ulrich Tukur). Die Kommissarin Nora Jaspers (Anja Kling) fährt in die Spreemetropole, um den Mann zu verhören, doch ein hoher LKA-Beamter (Walter Kreye) nimmt ihr den Fall weg. Gleichzeitig versucht Noras Vater, der Polizeipräsident Kolberg (Hanns Zischler), eine Law-and-Or­der-Partei zu etablieren…

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.