Hungary: Callously leaving her handicapped daughter home alone, Sonya meets her lover at a hotel and is later shot to death. At her funeral, the main suspects are all present: Peter, Sonya's estranged husband; Tanya, her sister; and Julia, a business associate. The police inspector is assigned to the case discovers that Peter is sexually involved with both of the aforementioned women. Further murders ensue...
| Actor | Role |
|---|---|
 Serena GrandiTania | Tania |
 Fabio TestiPeter | Peter |
 Florinda BolkanGiulia | Giulia |
| PPaul MartignettiInspector Ivan Zanev | Inspector Ivan Zanev |
 Cesare BarroJames Pierson | James Pierson |
 Anna Maria PetrovaMilena Radeva (as Anamaria Petrova) | Milena Radeva (as Anamaria Petrova) |
 John ArmsteadNot listed | Not listed |
| MMagda BonifacioNot listed | Not listed |
| DDaniele StroppaNot listed | Not listed |
| VVesela Dimitrova(as Vessela Dimitrova) | (as Vessela Dimitrova) |
 Anya PenchevaAnn (as Ania Penceva) | Ann (as Ania Penceva) |
| SSusanna BugattiNot listed | Not listed |
 Valcho KamarashevChief Inspector Costa (as Velcio Kamarascev) | Chief Inspector Costa (as Velcio Kamarascev) |