The Sato family are all genuine perverts, each with their own unique fetish. Their abnormal daily life begins with watching adult videos together every morning, sharing tainted meals through mouth-to-mouth feeding. The mother happily performs perverted housework while completely naked, while the exhibitionist older sister indulges in lewd phone sex. Meanwhile, the sadistic younger sister returns home from school and subjects her masochistic mother to extreme punishment play using a guillotine nipple clamp. As night falls, the family repeatedly engages in an outrageous act: incestuous creampie Russian roulette, depicting the twisted dynamics of this deviant household.