A film depicting married woman Ashiya, a prim and proper housewife, experiencing her first anal orgasm. Surrounded by the skilled techniques of an esthetician, she gradually loses control of both mind and body. Her anus is stretched open with fingers and a vibrator, then impaled by a massive cock, driving the elegant wife into uncontrollable ecstasy as she shamelessly writhes and cums repeatedly in a vulgar display of pleasure.