Diary of a Serial Killer

Böhm, a young marriage swindler, meets up with an old school friend who works as a writer. Lehmann writes sensational factual reports about spies and murderers. When Mr. Böhm learns that he can make money by claiming to be a murderer, he pretends to be a woman-killer. His old school friend Lehmann then takes him to his agent Mr. Marojan. While the "factual report" is in full swing, the police discover the truth, namely that Böhm is not a murderer at all. So as not to disappoint the magazines, Böhm, Lehmann and agent Marojan come up with a perfidious plan: Böhm is actually to murder women. A victim is soon found, but "woman killer" Böhm makes a fatal mistake...

• Helmut KäutnerDirector
• István BékeffyWriter

• Siegfried LowitzJohn Marojan
• Helmut QualtingerRudi Böhm
• Günter PfitzmannWerner Lehmann
• Ingrid van BergenIleana Marojan
• Manfred HeidmannDr. Erik Gilbert
• Elisabeth WiedemannUrsula
• Udo VioffGünter Schmidt
• Christiane SchröderDr. Jolanda Schmidt
• Paul KlingerKriminalrat Rose
• Henning SchlüterBeamter vom Verfassungsschutz
• Hans-Werner BussingerKriminalassistent Fischer
• Barbara MorawieczMarja