Miki has spent 20 years running a small company with her husband, but years without sex have left her confidence as a woman fading. One day she goes to dinner with Shinji, her adult son's best friend, who has always cared about her. Tipsy after drinking, they hold hands on the way to a hotel, where he pushes her onto the bed. Embarrassed, Miki asks if he is really fine with an older woman like her, but her long-neglected body catches fire and her forgotten desires spiral out of control.