Tired of the monotony of daily life, housewife Maki impulsively begins a twisted family drama. Her husband's fetish? Orgasm control through bondage. He traps her in a box-like contraption, tormenting her with vibrators and electric massagers. Caught in the act by her stepson, he too forces her into giving blowjobs. When her husband discovers them, he places her on a triangle horse, pushing her to the brink of pleasure with relentless stimulation. Under the guise of family bonds, love and desire intertwine in this erotic tale.