Jin-seok and Yeo-eun are a loving couple. And Yeo-eun's older sister, Su-a, who came to the couple's house. When Jin-seok goes to the living room, not awake from the alcohol he drank the day before, he sees his naked wife after taking a shower, and she is overrun with lust. Su-a decides to appease her lust by intimidating him as she forgets his exhilarating taste.
