Two shots were fired from Falke's weapon. He and his colleague Grosz come under suspicion and have to face internal investigations. But there are also others who had an interest in the young woman's death. Were Falke and Grosz used and should they now be made scapegoats or has their use actually gotten out of hand?

Eisner and Fellner hunt for a serial killer.

A woman presumed dead for seven years reappears with a patchy memory. [Weimar]

After a billionaire is killed during a burglary, the victim's wife shoots and kills the perp. [Weimar]

Hotel employee Marion Faust was violently thrown from the balcony at home. Ballauf and Schenk find out that shortly before her death she had left several worried messages on Susanne Baumann's answering machine. But the employee of the internationally renowned architectural firm Könecke & Partner is currently nowhere to be found. Could her husband Lars Baumann have something to do with the matter?

Faber and his team investigate a rabies attack inside of the prison.

A package with a severed finger leads Rubin and Karow to an art film eerily paralleling their investigation.

Borowski's last case led to the transfer of his colleague Sarah Brandt. In order to escape the anger in the commissariat, Borowski plunges into a case that leads him into the vast landscape of the North Frisian Wadden Sea. On Suunholt, a small, sleepy North Sea island near Denmark, a man was found dead who is no stranger in Kiel. Years ago Oliver Teuber was the key figure in a corruption scandal. The dead man had apparently found a new life and a new love far from Kiel. On Suunholt, the commissioner faces the completely disbanded Famke Oejen, who found her lover lifeless in her shared bathroom. Borowski is captivated by the mysterious atmosphere of the strange islanders.

A letter from his godchild Grete conjures up the spirits of the past with Commissioner Borowski. Heike Voigt disappeared four years ago. She was a friend's wife. Her husband Frank Voigt was suspected at the time and acquitted for lack of evidence. In the letter, Grete asks her uncle Klaus for help.