Mari Somei is a Japanese actress, who mysteriously disappeared from the film industry in 1988 after portraying a lethal mermaid in her last movie.
An artist dealing with the grief of his wife leaving him finds solace in painting the squalor of the sewer. He discovers a trapped mermaid, whom he brings home to heal. Her condition worsens, and she asks the artist to paint her before she dies.
The daughter of a wealthy family rebels when her father remarries and she becomes a leader of a girl gang. She hatches a plot to use her stepmother to get a large sum of money by pretending to be kidnapped. But the tables are turned when gangsters intervene and capture them both. They are subjected to various humiliations and sexual perversions.
A gang of street punks attack a female radio DJ in a subway because she didn’t play their requested song. A man comes to her rescue and they run away together. She doesn’t know that he was the one who killed her older sister in a motorcycle accident.