A man is torn between two women--one demonic, one angelic. The young and dissolute Ryno de Marigny is betrothed to marry Hermangarde, a virtuous gem of the French aristocracy. But some, who wish the union not to occur, whisper that the young man will never break off his affair with Vellini, which has been going on for years. In a swirl of confidences, betrayals and secrets, feelings will prove their strength to be invincible.