Hans Baerlach is a Swiss police detective who has dedicated much of his career to pursuing powerful and allegedly murderous businessman Richard Gastmann. Though Baerlach's partner meets his demise while investigating Gastmann, his replacement, Walter Tschanz, is undaunted. Meanwhile, the lovely Anna Crawley becomes involved in the case, which proceeds to take many twists and turns.

When a German businessman causes a car accident with deadly consequences, the papers start digging into his past to find scandals. What they find causes him to reevaluate his own past during WW2 when he was in Greece.