Klara Blum and Kai Perlmann are called to a body found in the forest. The dead man is an unknown man who was killed by a jogger in self-defense. The perpetrator, who works as a judge, is still on site and is in shock. She states that the man ambushed her and wanted to rape her - everything speaks for the specified course of events and the man's manslaughter in self-defense. It was only when Klara Blum and Perlmann carried out more detailed investigations into the dead man's environment that they found out that his private life and social demeanor did not exactly seem to fit an alleged rapist. Did the perpetrator and the victim actually know each other before this fateful encounter in the forest?