Based on the "Haas-Koelling" trial of 1926-27 from Magdeburg, Germany, in which Jewish industrialist Rudolf Haas was falsely accused of murder, this postwar German drama explores the relationship between the legal system, antisemitism, and fascism in prewar Germany and the historical context that allowed the rise of Nazism. Dr. Jacob Blum, a wealthy Jewish manufacturer, is falsely accused in murder. Even when the real murderer identity becomes evident, the state prosecutor refuses to accept Blum's innocence plea.