In the dimly lit, clinical confines of Analtreat's Assylum, a young woman, vulnerable and exposed, awaits her "treatment". Her therapist, a stern, leather-clad dominatrix, begins the session with a commanding blowjob, her skilled mouth engulfing the woman's asshole, tongue flicking and probing. The patient squirms, moaning, as the therapist slips a finger, then two, deep into her tight, puckered hole. The therapist then selects a monstrous, veined dildo from her arsenal, slowly easing it into the woman's ass, inch by inch, until it disappears completely. The woman gasps, her body arching, as the therapist begins to fuck her ass with relentless, deep strokes.