Sakurai has successfully completed an important project for the company. To congratulate his colleague Kazama on their good work, he decides to go to Kazama's house nearby for a drink, but... After drinking heavily, the two end up arguing over something trivial. The situation is somehow resolved, but Sakurai, jealous of Kazama's marriage to Yumi, a busty wife, goes crazy with jealousy and tries to rape Yumi in the middle of the night...