The best affair ever. Sex, everyday life, everything about me is ruined by the mistress. I'm melting away in this swamp... Miu Shiramine - Shiramine Miu

The movie revolves around an extramarital affair between Tsuruki and his mistress, exploring themes of desire, intimacy, and deception. As their relationship deepens, they must navigate the complexities of their secret encounters, all while maintaining a facade of normalcy in their daily lives. The central dramatic tension lies in the risks and consequences of their illicit relationship, threatening to upend their personal and professional worlds.