Rosi
Three couples are having sexual problems until a porn star shows up and teaches them a few lessons.
Paulova (as Susana Kerr)
Desdemona lives on an isolated island with her strange family: her father Mario, her stepmother Dulcinea and her mentally challenged sister Paulova. As the only inhabitants on the island loneliness and desolation engulf all members of her family. Desdemona tries to ward off her boredom by taking long walks along the beach or engaging in acts of self-gratification. She often tries to seduce her own father Mario to engage in acts of a sexual nature. Their daily routine is interrupted by the arrival (by boat) of a robust male stranger who brings friction into Desdemona's family.
(as Ida Balin)
Al Pereira is hired by Lina, the wife of a wealthy man, to recover some compromising photos. She has sex with him by way of a retainer. In the course of his investigation, Al is obliged to commit a couple of murders... and he's left holding the bag when Lina turns out not to be what she seems to be.
María (as Ida Balín)
Emmanuelle is recently reunited with her husband, but at the next party, she gets drunk and strips nude for his friends. He returns to his lover. Later, a sober Emmanuelle tries to redeem herself, but her husband refuses to forgive. She travels to see him, gets raped on the way by two delinquents, and enters a life of vicious sex to forget him.