40 years after her husband is shot and killed by a terrorist while on duty as a police officer during a routine traffic check, Erika Welves (Senta Berger), aided by a journalist (Felix Eitner) finds evidence leading to the murderer. For the killer has vanished. Is living in freedom. Because the state is protecting him, keeping him safe. He in turn has supplied information concerning other terrorists. Erika Welves considers this blatant injustice. But now, finally, there is a chance at revenge...

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.