For 20 years, Karen has devoted herself to being a good wife and mother. Her family looks ordinary but happy from the outside, yet at 43 she has gone more than a decade without sex with her husband, who no longer sees her as a sexual woman. She longs to feel desired again—to have her heart race from a kiss and be taken so passionately that she loses herself. Unable to shake that forbidden fantasy, the married mother of one from Shinjuku gives in to an affair with a boyfriend for one day, surrendering to pleasure and a final creampie.