The film, released in 2016, tells the story of the infidelity of a young woman named Rin Azuma, who has just married, with her 50-year-old bald neighbor, Nakawa. Azuma herself is a devoted wife for her husband and children, but for some reason, her husband is increasingly distancing himself, making her very sad and lonely. At that moment, Azuma meets Nakawa in the adjacent room; they chat whenever her husband is at work, and then one day...
The bald man invites Azuma over to his house, and what is meant to happen will happen. Nakawa knows that the girl needs a man at this point, so he easily takes Azuma's body without resistance. That was not the last time they secretly had an affair with each other...