Incest is no longer a sin!
The Dark Side of Love
The sexual relationship between a successful woman and her brother, an introvert, hypochondriacal youth, who is also a pornophile.
Salvatore SamperiDirector
Salvatore SamperiScreenplay
Edith BruckScreenplay
Riccardo GhioneScreenplay
Riccardo GhioneStory
Salvatore SamperiStory
Massimo di LuzioStory
Top Billed Cast
Monica Guerritore
Patrizia Viani
Saverio Vallone
Arrigo, Patrizia's Lover
Gilla Novak
Michelle, The Model
Gianfranco Manfredi
Franco Alessi, Emilio's Teacher
