A serial killer is on the run, after escaping a mental institution. He befriends a woman and her child, but the urge to strangle women with red necklaces still haunts him.
| Actor | Role |
|---|---|
 Klaus KinskiMartin | Martin |
 Brigitte GrothumKatrin | Katrin |
 Sieghardt RuppKarl | Karl |
 Dieter BorscheProfessor Lindner | Professor Lindner |
 Jochen BrockmannVollbricht | Vollbricht |
| MMarina PetrovaAnna | Anna |
| HHanns ObonyaKlobner | Klobner |
| EElisabeth TervalTheres | Theres |
| AAnnemarie BertheProfessor Lindners Assistentin | Professor Lindners Assistentin |
| EEdd StavjanikKriminalrat Berger | Kriminalrat Berger |
| PPeter MachacFranz | Franz |
| CChristine RatejHanni | Hanni |
| HHelmuth SilbergasserStephan | Stephan |
| RRenate SchmidtVerkäuferin | Verkäuferin |
| JJosef KrastelLadenbesitzer | Ladenbesitzer |
 Herbert FuxLastwagenfahrer | Lastwagenfahrer |
| WWalter RegelsbergerVerkehrspolizist | Verkehrspolizist |