

1957·Science Fiction·1h 3m
6.9
★








A group of scientists travel to a remote island to study the effects of nuclear weapons tests, only to get stranded when their airplane mysteriously explodes. The team soon discovers that the tests have given rise to crabs mutated into intelligent, impervious, telepathic giants intent on increasing their numbers by breeding, then travelling to populated areas to feed, and which do not intend to be stopped by their discoverers.
Directed by Roger Corman
island
radiation
decapitation
crab
marooned
scientist
severed hand
scientist hero
underground cavern
giant crab
mysterious events
scientist heroine
missing expedition

Trailer

IMDB
N/A
Where to Watch



Cast

Richard Garland
Dale Drewer

Pamela Duncan
Dr. Martha 'Marti' Hunter

Russell Johnson
Hank Chapman

Leslie Bradley
Dr. Karl Weigand

Mel Welles
Jules Deveroux

Richard H. Cutting
Dr. James Carson

Beach Dickerson
Seaman Ron Fellows

Ed Nelson
Ensign Quinlan

Charles B. Griffith
Seaman Mac, wears sunglasses
Crew

Roger Corman
Director

Charles B. Griffith
Screenplay

Floyd Crosby
Director of Photography

Roger Corman
Producer

Charles B. Griffith
Associate Producer

Ed Nelson
Special Effects

Beach Dickerson
Special Effects
Popular Reviews
27 reviews
Luka
5.0★ · 02/25/26

???? whatever
???? whatever
Bearman08
4.0★ · 02/12/26

Bad acting, bad special effects, weird crab monsters that eat human brains. I wouldn’t recommend it unless you really like crabs.
Bad acting, bad special effects, weird crab monsters that eat human brains. I wouldn’t recommend it unless you really like crabs.
M Hansen
3.0★ · 10/02/25

Day 2 of Ray Dombi’s Spooky Film Jam:
It’s another Corman because I was short on time, and this was one of the shortest horrors on my watch list. Even though I was expecting “Roger Corman on Tubi” quality, I can’t emphasize how bad this is. First of all, our telepathic crab person looks like someone’s discarded crab boil shells strung together with puppet string. Also, our cast is over performing and melodramatic as hell. Our only female character is a doctor (pretty sick for the 1950’s). But that being said, I love that even in a fictional depiction of an educated women with a doctorate in marine studies, her experience is allocated to “preparing seafood” and to be the love interest of two of the other Biologists. Their love triangle is like a Team Edward/Team Jacob situation. Not really worth your time, unless you too need to watch a quick Corman.
1.5 out of 5 Crab person-hand dismemberments.
🦀🦞🦐
It’s another Corman because I was short on time, and this was one of the shortest horrors on my watch list. Even though I was expecting “Roger Corman on Tubi” quality, I can’t emphasize how bad this is. First of all, our telepathic crab person looks like someone’s discarded crab boil shells strung together with puppet string. Also, our cast is over performing and melodramatic as hell. Our only female character is a doctor (pretty sick for the 1950’s). But that being said, I love that even in a fictional depiction of an educated women with a doctorate in marine studies, her experience is allocated to “preparing seafood” and to be the love interest of two of the other Biologists. Their love triangle is like a Team Edward/Team Jacob situation. Not really worth your time, unless you too need to watch a quick Corman.
1.5 out of 5 Crab person-hand dismemberments.
🦀🦞🦐
Day 2 of Ray Dombi’s Spooky Film Jam:
It’s another Corman because I was short on time, and this was one of the shortest horrors on my watch list. Even though I was expecting “Roger Corman on Tubi” quality, I can’t emphasize how bad this is. First of all, our telepathic crab person looks like someone’s discarded crab boil shells strung together with puppet string. Also, our cast is over performing and melodramatic as hell. Our only female character is a doctor (pretty sick for the 1950’s). But that being said, I love that even in a fictional depiction of an educated women with a doctorate in marine studies, her experience is allocated to “preparing seafood” and to be the love interest of two of the other Biologists. Their love triangle is like a Team Edward/Team Jacob situation. Not really worth your time, unless you too need to watch a quick Corman.
1.5 out of 5 Crab person-hand dismemberments.
🦀🦞🦐
It’s another Corman because I was short on time, and this was one of the shortest horrors on my watch list. Even though I was expecting “Roger Corman on Tubi” quality, I can’t emphasize how bad this is. First of all, our telepathic crab person looks like someone’s discarded crab boil shells strung together with puppet string. Also, our cast is over performing and melodramatic as hell. Our only female character is a doctor (pretty sick for the 1950’s). But that being said, I love that even in a fictional depiction of an educated women with a doctorate in marine studies, her experience is allocated to “preparing seafood” and to be the love interest of two of the other Biologists. Their love triangle is like a Team Edward/Team Jacob situation. Not really worth your time, unless you too need to watch a quick Corman.
1.5 out of 5 Crab person-hand dismemberments.
🦀🦞🦐
Szabó Dávid
2.0★ · 08/09/25

A fun monster movie, but not worth even an hour of your time. There are lots of more unhinged monster movies, even from the same era
A fun monster movie, but not worth even an hour of your time. There are lots of more unhinged monster movies, even from the same era
Glenjamin
2.6★ · 06/16/25

This was highkey bumcheeks and kinda gave me a headache, it was not for me and maybe, just maybe it’s a movie for movie lovers but it didn’t even give me a dreamlike atmosphere because of the headache I got due to the colours constantly changing #CRABS #SWAG
This was highkey bumcheeks and kinda gave me a headache, it was not for me and maybe, just maybe it’s a movie for movie lovers but it didn’t even give me a dreamlike atmosphere because of the headache I got due to the colours constantly changing #CRABS #SWAG