Guinea Pig: Mermaid in the Manhole (1988)

1h 3m | PG-13

⭐ 5.2 / 10

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.