Helene, a flight attendant, seeks the help of a private investigator to find her sister, who has disappeared.
| Actor | Role |
|---|---|
 Pauline TeutscherHelene Vlady | Helene Vlady |
 Maria Pia CafieroKaty Vlady | Katy Vlady |
 Paolo GramignanoJim Morris | Jim Morris |
 Guia Lauri FilziClaire | Claire |
 Sabrina MastrolorenziRagazza nella sauna | Ragazza nella sauna |
 Mary RamunnoCarlotta | Carlotta |
| MMark ShannonBrad Franklyn | Brad Franklyn |
| LLuigi TripodiMeccanico | Meccanico |
 Aperio Bella OliviaNot listed | Not listed |