In the dead of night, an abnormal genital examination takes place inside the operating room. The doctor meticulously inspects each woman's intimate anatomy—three-dimensional genital structure, scent, anal shape, and depth—plunging them into depraved pleasure. Slick, swollen labia and clenching vaginal muscles entwine with the doctor's skilled hands as relentless waves of torment drive the patients to their limits. This is anal torture treatment performed by a physician consumed by perverse desire. One by one, the patients are forced to expose their own twisted sexual cravings.