While investigating of a murder case, widowed police commissioner Lenders makes a confusing discovery; one of the victims comes from a different time. Did an implanted chip make this time travel possible? More victims follow. What is the motive behind the murders? And what is the connection between the victims? Can he use the chip to change his own life story?

An idyllic town in the Alps. Here Marianna spends her Easter holidays with her children. Her husband, a showmaster, could not travel because of his job. Zazy lives in the same place and teaches dressmaking there. She is not really happy with that, she would rather go into show business. Together with her friend Tomek she dreams of a life in luxury. In the tailoring Zazy meets Marianna, who has become friends with the owner of the store. When he does not return after a trip with Marianna, Zazy senses the chance to make her dream of a TV career come true.

Martina and her partner Ralf, who run a restaurant together in Cologne, enjoy their holiday in Brittany - until one day Ralf does not return from a sailing trip. The Breton police believe in a sailing accident and make Martina little hope that her friend has survived. But Martina does not want to accept Ralf's death and begins a desperate search on the coast of Brittany. However, when this remains in vain, Martina returns to Germany.

Tatort is a long-running German/Austrian/Swiss, crime television series set in various parts of these countries. The show is broadcast on the channels of ARD in Germany, ORF in Austria and SF1 in Switzerland.