Today, I will play my brother's wife. Saejima Kaori

The movie revolves around the complex relationships within a family, particularly the dynamics between Kaori, her husband Makoto, and his brother. The story explores themes of infidelity, desire, and guilt as Kaori engages in a secret affair with her brother-in-law. The central dramatic tension arises from the forbidden nature of their relationship and the potential consequences of discovery, which threatens to disrupt the stability of their family lives.