Tired of her sexless marriage, Michiyo finds herself caught in an unexpected turn of events when her husband’s boss announces a staff appreciation party at his home. That night, the boss passes out drunk, leaving Michiyo alone with a younger subordinate to continue drinking. As the alcohol takes effect, Michiyo begins acting increasingly bold and sensual. The hesitant subordinate can't resist her growing allure, and their intimacy quickly escalates. However, the boss—who appeared to be asleep—secretly wakes up, watching everything unfold. But his true intentions are far more twisted than anyone could imagine…