定食屋の若奥様 やめて、義父さん！

A small diner in Tokyo's downtown area. The owner, Katsunori, scolds his wife, Shino, and leaves the restaurant. The next day, Shino receives a call from her old lover, Otomo. Shino's heart flutters. Later, Katsunori shows up at the restaurant with a man from a real estate agency, but Shino yells at him, causing the man to leave. That night, Otomo visits the restaurant. The two go straight to a hotel. Shino is embraced by Otomo and gives herself over to pleasure.