In the bowels of the asylum, a sinister ritual unfolds. The girl, her body a canvas of welts and bruises, is suspended by her wrists, her legs spread wide, her ass exposed. A nurse, her uniform drenched in sweat and fluids, approaches, a glinting metal device in her hand. She lubes it up, her fingers probing the girl's asshole, making her squirm. Then, with a sadistic grin, she inserts the device, pushing it in inch by inch, until the girl's asshole is stretched to its limit, the device's base pressing against her flesh, ready for the next brutal stage of her "treatment."