In 1955 Michael Vierkant, a Jew who emigrated during the Nazi-era, returns to the BRD to obtain the judgment of the former denouncer Korn, who was responsible for the murder of his sister. Korn is back in office with dignity and Michael’s efforts are without success. During a direct confrontation, Michael shoots Korn dead and flees the scene. Although he is concealed by the young, reserved artist Marie Jäger, he is eventually found by the police and accused of murder.

The case is taken over by the intelligence service, which constitutes a political act of revenge for the sake of communism. Michael is able to escape from prison. Maria and her friends organize a press conference, at which Michael makes the connections public. The trial is postponed.