The busy husband often leaves the house, and Rie (Nana Sano), in her prime, starts directing her pent-up desires towards her father-in-law, Shigemoto. She teases him with tight blouses and miniskirts at home, and finally, Rie seduces him, causing her suppressed lust to explode... The taboo of being raped by her husband's father further stimulates her brain, engulfing her in a whirlpool of pleasure and an unprecedented climax that is entirely different from sex with her husband. The triangular relationship within the family escalates...
