36 user 23 critic

Ginî piggu: Manhôru no naka no ningyo (1988)

An artist finds and rescues a mermaid in a sewer. He takes her home with him and she develops sores all over her body that begin to pustulate and bleed. He uses what oozes from her sores to... See full summary »


Learn more

People who liked this also liked... 

Short | Horror
    1 2 3 4 5 6 7 8 9 10 5.1/10 X  

A woman walking home late at night is attacked by an unknown assailant who knocks her out with chloroform. When she regains consciousness, she finds herself tied to a bed in a blood- ... See full summary »

Director: Hideshi Hino
Stars: Hiroshi Tamura, Kirara Yûgao
Short | Comedy | Horror
    1 2 3 4 5 6 7 8 9 10 4.8/10 X  

A men gets depressed because his girlfriend has dumped him for a friend. He tries to attempt suicide but to no avail, so he decides to scare the guy that stole his girl, by throwing his own... See full summary »

Director: Masayuki Kusumi
Stars: Shinsuke Araki, Ivu, Masahiro Satô
Short | Horror
    1 2 3 4 5 6 7 8 9 10 4/10 X  

A group of guys capture a young girl with the intent of hurting her. They torture her in many ways, from beating her to putting a sharp piece of needle-like metal through her eye which ... See full summary »

Director: Satoru Ogura
    1 2 3 4 5 6 7 8 9 10 4/10 X  

A dwarf scientist has his dreams frustrated when his sister becomes seriously ill. Determined to find a way to preserve the essence of his sister after the death, the scientist begins to use humans as guinea pigs in a bizarre experiment.

Director: Kazuhito Kuramoto
Stars: Toshihiko Hino, Mio Takaki, Tomorô Taguchi
Nekromantik 2 (1991)
    1 2 3 4 5 6 7 8 9 10 5.4/10 X  

A female nurse desperately tries to hide her feelings of necrophilia from her new boyfriend, but still has pieces of the corpse of the first movie's hero in her possession.

Director: Jörg Buttgereit
Stars: Monika M., Mark Reeder, Lena Braun
Comedy | Horror
    1 2 3 4 5 6 7 8 9 10 4/10 X  

A drag queen doctor named Peter conducts experiments on patients which end up in anguish!

Director: Hajime Tabe
Stars: Mitsuru Fukikoshi, Kobuhei Hayashiya, Masami Hisamoto
Schramm (1993)
    1 2 3 4 5 6 7 8 9 10 6/10 X  

As serial killer Lothar Schramm lies dying in his own blood, horrific memories of his miserable life of paranoia, self-harm and rejection flash before his eyes. A tragic look into the mind of a Borderline Personality Disorder psychopath.

Director: Jörg Buttgereit
Stars: Florian Koerner von Gustorf, Monika M., Micha Brendel
Aftermath (1994)
Short | Horror
    1 2 3 4 5 6 7 8 9 10 6/10 X  

A short film wherein a man working in a morgue mutilates and defiles one of the corpses. He takes the heart home to his dog.

Director: Nacho Cerdà
Stars: Pep Tosar, Jordi Tarrida, Ángel Tarris
Horror | Romance | Sci-Fi
    1 2 3 4 5 6 7 8 9 10 6.3/10 X  

A scientist taints his mother's scientific experiment with his own drug that transforms pain into a pleasurable experience. Unfortunately for the three women involved in the experiment, the drug works a little bit too well.

Director: Hisayasu Satô
Stars: Misa Aika, Yumika Hayashi, Mika Kirihara
Nekromantik (1987)
    1 2 3 4 5 6 7 8 9 10 5.2/10 X  

A street sweeper who cleans up after grisly accidents brings home a full corpse for him and his wife to enjoy sexually, but is dismayed to see that his wife prefers the corpse over him.

Director: Jörg Buttgereit
Stars: Bernd Daktari Lorenz, Beatrice Manowski, Harald Lundt
    1 2 3 4 5 6 7 8 9 10 3.8/10 X  

Tells the story of a fashion photographer whose vocation is murder.

Director: Nick Palumbo
Stars: Sven Garrett, Cerina Vincent, Tony Todd
Gurotesuku (2009)
Horror | Thriller
    1 2 3 4 5 6 7 8 9 10 4.8/10 X  

An unnamed doctor has always had everything he's ever wanted, but that has only made him develop more extreme and depraved needs. He kidnaps a young couple in the prime of their life ... See full summary »

Director: Kôji Shiraishi
Stars: Kotoha Hiroyama, Hiroaki Kawatsure, Shigeo Ôsako


Credited cast:
Shigeru Saiki ...
The Artist
Mari Somei ...
The Mermaid
Rest of cast listed alphabetically:
Masami Hisamoto
Gô Rijû
Tsuyoshi Toshishige


An artist finds and rescues a mermaid in a sewer. He takes her home with him and she develops sores all over her body that begin to pustulate and bleed. He uses what oozes from her sores to paint her portrait. When he can no longer handle it anymore he breaks down and dismembers her body. Written by Chris Mayo <cmayo@thezone.net>

Plot Summary | Add Synopsis




See all certifications »

Parents Guide:





Release Date:

25 July 1988 (Japan)  »

Also Known As:

Guinea Pig: Mermaid in the Manhole  »

Company Credits

Production Co:

Show detailed on  »

Technical Specs



See  »

Did You Know?

Crazy Credits

At the end of the credits there is a small scene in the sewer where we hear something move in the water. See more »


Followed by American Guinea Pig: Bouquet of Guts and Gore (2014) See more »

Frequently Asked Questions

See more (Spoiler Alert!) »

User Reviews

Paint me with the seven colors of my pus
22 September 2009 | by (Canada) – See all my reviews

'Mermaid In A Manhole' is part of the infamous 'Guinea Pig' series of Japanese horror films, considered to be among the goriest, and most grotesque offerings out there. There are six titles to choose from and I went with the one that seemed to be the tamest. As an added bonus I got two films for the price of one. The other title on the disc was a 39 minute horror comedy called 'He Never Dies'. 'Mermaid' itself is only 63 minutes long, and that's a good thing. It is definitely disgusting and a couple of moments were gag worthy, but it isn't unwatchable. I realize that most people would find this film extremely repulsive, and I get that. Everyone has there line in the sand. I don't care for long scenes of rape and humiliation or animal death, but mermaids covered in tumors that squirt out worms and multi-colored pus is just a little too far from reality to be upsetting to me. There were trailers for other films in the series that looked much harsher. Even the favorable reviews I read said that there is little, if any story to 'Devil's Experiment' and 'Flowers of Flesh and Blood'. They are quite simply an exercise in how much you can stand to look at. I love the gore, but I need more! I need a story, or comedy, or some other form of entertainment to go along with it. I'm not going to rush out to rent more 'Guinea Pig' films, but to my surprise, I didn't hate 'Mermaid'. "There are seven different colors of pus in these tumors. You will paint me with the pus of seven colors." Our mermaid starts out with just a few tumors on her stomach and they spread like wildfire. The tumors are extremely disgusting to look at and as they spread they get more vile with the added addition of blood, colored pus and worms. Lot's and lot's and lot's of worms! The artist quite literally does paint her portrait with the seven colors of her own pus. 'Mermaid' was obviously made on a tight budget, and I think they pored every dollar they had into the gore. But there is a story, and the film actually comes full circle with an ending that is a twist that actually makes sense when you look back at it. The film tries to horrify but doesn't really succeed. It will gross you out and disgust you but it isn't suspenseful and it certainly isn't scary. There are more than a few moments that are just dumb. One particularly gory scene of the mermaid twitching out in slow motion, spraying away like a fountain, gave me a good laugh. In addition, there is a fan behind her blowing her hair about. Those crazy sound effects they used were downright cartoon-ish. There are also wacky neighbors that live below the artist that just didn't fit the rest of the film. I'm not sure whether they intended a little comic relief or it was unintentional, but in any case it didn't work for me. There is plenty to poke at, but I can't fail it. The mermaids tail was quite cool; very slimy and fishy. The gore is creative, and at times quite effective and the ending made up for some of it follies. I'm giving this one a day pass but rent it at your own risk!

5 of 5 people found this review helpful.  Was this review helpful to you?

Contribute to This Page

Create a character page for: