In the asylum's darkest corner, Charlotte Sartre, eyes wild with desire, submits to her dominant sisters. They bind her, expose her waxed skin, and explore her holes with anal beads. In a frenzy of bondage and lezdom, they fuck her raw, one's thick strap-on filling her ass, the other's fingers plunging into her cunt, their bodies slapping together in a symphony of rough sex and taboo lust.