In the dimly lit, sterile room of the asylum, Bin, a resident with a penchant for the perverse, is brought in for her daily 'treatment.' She's strapped down, her ass exposed, ready for the 'doctor' and his team of nurses. They start by licking her asshole, getting it nice and wet before the 'doctor' plunges his hard cock into her, fucking her ass raw. Bin's screams echo through the halls, but it's all part of the 'therapy.'