In early 20th-century Sicily, Eugenia Di Maqueda and Raimondo Corrao discover on their wedding night that they are brother and sister and therefore unable to consummate their marriage. For the sake of the family inheritance and honour, the two decide not to reveal the truth to anyone. In public, they will play the part of husband and wife, but in private they will live in absolute chastity as siblings. Meanwhile, the beautiful Eugenia’s urgent carnal desires become increasingly pressing...
| Actor | Role |
|---|---|
 Laura AntonelliEugenia di Maqueda | Eugenia di Maqueda |
 Alberto LionelloRaimondo Corrao, marchese di Maqueda | Raimondo Corrao, marchese di Maqueda |
 Michele PlacidoSilvanno Pennacchini, l'autista | Silvanno Pennacchini, l'autista |
 Jean RochefortBarone Henri de Sarcey | Barone Henri de Sarcey |
 Ugo PagliaiRuggero Di Maqueda | Ruggero Di Maqueda |
 Rosemary DexterFlorida, madre di Eugenia | Florida, madre di Eugenia |
 Karin SchubertEvelyn | Evelyn |
 Michele AbruzzoDon Pacifico | Don Pacifico |
| SSebastiano IndelicatoNot listed | Not listed |
| CClemente CipaNot listed | Not listed |
| MMaria SciaccaNot listed | Not listed |
 Carla ManciniNot listed | Not listed |
 Lorenzo PianiNot listed | Not listed |
| GGiuseppe CaraccioloNot listed | Not listed |
| TToni Luigi ArceriSoldato Siciliano | Soldato Siciliano |