Aki, a 36-year-old housewife, has been married for six years to a wealthy man-boy. Tired of her husband's mother complex and constant comparisons to his mother, she reluctantly agrees when he invites her to a private wine tasting party. Knowing some attendees, she heads to the apartment venue. A wine enthusiast, Aki becomes slightly tipsy from excitement and nervousness, and the conversation naturally turns to her husband. While venting her frustrations, she unknowingly draws the interest of others with her candid stories—eventually revealing intimate details about her sex life and bedroom issues, cheerfully answering their probing questions. Under the influence of alcohol and light erotic talk, the long-repressed, sexually frustrated Aki gradually begins to let her guard down.