Abducted to a mysterious French island, 16-year old Rosamund finds herself at the mercy of the Duke and his four libidinous sons. She soon learns that her virginity must be sacrificed in order to breed the Black Rose, a rare flower whose aphrodisiac elixir will transform the world into a polysexual playground of orgiastic and orgasmic excess.

Rosamund's carnal initiation plunges her into a vortex of pain and pleasure, as she discovers that the Chateau Rose is a sensory realm where sadism, sapphism, sodomy, incest, bestiality, wild debauches and rampant fornications are a way of life.