Daidoji Tamotsu is a 51-years-old man. He decides to marry his girlfriend that is 28 years younger than him. One day, his girlfriend, Hanazawa Miran bring him home to meet her dad, Hanazawa Kiichiro. Tamotsu and Kiichiro are shocked when they found out that they are the same age.

Betty Boop, a nursemaid, meets a masher in the park; with the Bouncing Ball, Ethel Merman sings the title song.

A female prosecutor notices a woman in a plastic surgeon's waiting room who looks strikingly like a girl who was murdered more than ten years earlier. An investigation into the plastic surgeon grows more bizarre by the minute, as the prosecutor unravels a ten year old mystery involving betrayal and murder.