Oscar is trying to re-establish an affair with Sandra, a disturbed young woman. Having found her husband Fabrizio shot dead and her young son Ricky standing beside him with a gun, Sandra suffered a complete breakdown and now lives in isolation with her protective mother. The latter saved the young boy from recrimination by placing the gun in his father's hand, making it seem like he committed suicide. However, things are not what they seem...
| Actor | Role |
|---|---|
 Stefania SandrelliSandra Garces | Sandra Garces |
 Keir DulleaOscar Minno | Oscar Minno |
 Micheline PresleCountess Claudia Osio De Blanc | Countess Claudia Osio De Blanc |
 Tino BuazzelliDoctor Emilio Bontempi | Doctor Emilio Bontempi |
 Renato CestièRiccardo 'Ricky' Garces | Riccardo 'Ricky' Garces |
 Maurice RonetFabrizio Garces | Fabrizio Garces |
 Orchidea De SantisCaterina | Caterina |
| GGaia GermaniBianca Molteni | Bianca Molteni |
 Gabriella LeporiSunbather on Terrace | Sunbather on Terrace |
| EElsa BoniNurse | Nurse |
| GGiorgio BassoNot listed | Not listed |
| BBruno BoschettiNot listed | Not listed |
| AAlberto CarreraNot listed | Not listed |
 Giorgio DolfinNot listed | Not listed |
| TTina MaverNot listed | Not listed |
| NNaiba PedersoliNot listed | Not listed |
| RRenzo ScaliNot listed | Not listed |