Guinea Pig: Mermaid in the Manhole

Guinea Pig: Mermaid in the Manhole (1988)

Radar 42Slightly unusual0h 58mHorror · Romance

The Radar read

A quieter title still finding its audience, though the rating rests on a thin sample, so treat it as provisional.

Synopsis

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.

Synopsis and metadata sourced from The Movie Database (TMDB).

Content check

✗ Not for kidsNo age rating on record
Scary / frighteningStrong violence

Based on the age rating and content tags — not a full scene-by-scene list.

Radar score42/100
Quality signal64/100
Audience rating5.5
Votes counted70
Trust signalSlightly unusual

Radar blends quality, momentum and freshness into one “what to watch now” number — so a great older film can sit lower than a rising new release. The Quality signal above is the time-neutral rating, which is why an acclaimed classic keeps a high quality score even when its Radar number is lower. Radar outputs are editorial algorithmic recommendations, not objective facts, and may change as signals update. A Radar score is not the same as a TMDB, IMDb or critic rating. How scoring works (v3.0).

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