Invited to his department chief's home, low-ranking employee Suzuki celebrates the success of a project with the chief's wife, Shoko. The chief, increasingly drunk, eventually passes out. Beside him, lightly intoxicated Shoko gives a sly smile, presses close to Suzuki, and begins sensually touching his young body. Soon her penis becomes fully erect, and she takes it into her mouth, starting to grind her hips with a mix of taboo excitement and arousal. Drawn in by her seductive movements, Suzuki grows more excited, ultimately thrusting his cock into her wet skin and losing himself in pleasure. The illicit sex of this unsatisfied married woman deepens the night with desire.