Piotr Stanilsas brings prim Eva Kleber, the shy cousin of the fiancée, Myka, to a party with the other cast members. Eva is forcibly stripped but then joins in the sexual antics with a will. Non-stop sex and partner swapping follow. A circular bed features in some of the scenes.
| Actor | Role |
|---|---|
 Piotr StanislasLe fiancé | Le fiancé |
 Mika BarthelLa fiancée | La fiancée |
 Jérôme ProustUn ami du couple | Un ami du couple |
 André KayUn ami du couple | Un ami du couple |
| EEva KleberLa cousine | La cousine |
 Cathy StewartUne amie du couple | Une amie du couple |
 Élisabeth BuréUne amie du couple | Une amie du couple |