Guinea Pig: Mermaid in the Manhole poster
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Guinea Pig: Mermaid in the Manhole

5.4198858mMovieHorrorRomance

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.

DirectorHideshi Hino
WriterHideshi Hino
ProducerSatoru Ogura

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Guinea Pig: Mermaid in the Manhole was released on July 25, 1988 but we couldn't find it on any streaming service yet. Rights can change — try again later.

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Cast · Directed by Hideshi Hino

SSShigeru Saiki
Shigeru Saiki
The Artist
MSMari Somei
Mari Somei
The Mermaid
GRGo Riju
Go Riju
Male Neighbor
MHMasami Hisamoto
Masami Hisamoto
Female Neighbor
TT
Tsuyoshi Toshishige

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Guinea Pig: Mermaid in the Manhole — streaming FAQ

Which OTT platform streams Guinea Pig: Mermaid in the Manhole?

Guinea Pig: Mermaid in the Manhole isn't streaming anywhere in Philippines yet.

Is Guinea Pig: Mermaid in the Manhole on Netflix?

No, Guinea Pig: Mermaid in the Manhole is not on Netflix in Philippines as of September 2026.

Is Guinea Pig: Mermaid in the Manhole on Amazon Prime Video?

No, Guinea Pig: Mermaid in the Manhole isn't on Amazon Prime Video in Philippines right now.

Where can I watch Guinea Pig: Mermaid in the Manhole for free?

Guinea Pig: Mermaid in the Manhole isn't streaming in Philippines yet, so there's no way to watch it free at the moment.

What is the OTT release date for Guinea Pig: Mermaid in the Manhole?

Guinea Pig: Mermaid in the Manhole hasn't started streaming in Philippines yet. Based on the typical 6–8 week theatrical-to-streaming window, we estimate it will arrive around September 12, 1988. This is a prediction, not a confirmed date.

Is there a sequel to Guinea Pig: Mermaid in the Manhole?

Yes — Guinea Pig: Mermaid in the Manhole is followed by Guinea Pig Part 5: Android of Notre Dame (1989) in the Guinea Pig Collection.

Is there a prequel to Guinea Pig: Mermaid in the Manhole?

Yes — Guinea Pig Part 4: Devil Doctor Woman (1986) comes before Guinea Pig: Mermaid in the Manhole in the Guinea Pig Collection.

Is Guinea Pig: Mermaid in the Manhole part of a trilogy?

No — Guinea Pig: Mermaid in the Manhole is part of the Guinea Pig Collection, which has 6 films.

How many movies are in the Guinea Pig Collection?

There are 6 films in the Guinea Pig Collection: Guinea Pig: Devil's Experiment (1985), Guinea Pig Part 2: Flower of Flesh and Blood (1985), Guinea Pig Part 3: He Never Dies (1986), Guinea Pig Part 4: Devil Doctor Woman (1986), Guinea Pig: Mermaid in the Manhole (1988) and Guinea Pig Part 5: Android of Notre Dame (1989).