Housewife Ryoko is busy with daily chores, yet her relationship with her son takes a disturbing turn. One day, her only son suddenly appears and starts groping her crotch. Even while talking on the phone with her husband, he drags her body away. When her husband returns home and enters the bathroom, the son forces his cock deep into his mother's throat from the other side of the door. Sensing her husband nearby, Ryoko becomes flustered, which only excites her son more. Gripping her head tightly, he thrusts his hips back and forth, driving her into confusion. After drugging her husband into unconsciousness, the son rapes his mother again. Her body is defaced with lewd graffiti, she's fitted with a nose hook, and is treated as nothing more than a sex slave and cumdump.