Movies like Hydra 1971
If you like "Hydra" you are looking for psychotronic, natural horror and scary movies about / with monster, mad scientist, transformation, creature feature, fish, octopus and sea themes of Horror and Sci-Fi genre shot in USA.
Find your next favorite and similar movies in two steps:
1. Identify all themes of interest from this film (block below).
2. Look for them in the presented list.
Hydra (1971)
5K
Original name: Zaat
Genre: Horror, Sci-Fi
Country: USA
Duration: 100 min.
Story:
A mad scientist (and apparent former Nazi) unleashes his master plan: to transform himself into a mutated walking catfish, gain revenge on those who have spurned him, and kidnap nubile young women to similarly transform so that he can breed. Or something like that.
Style:
psychotronic, natural horror, scary, serious, surprise ending, cult film, offbeat
Plot:
monster, mad scientist, transformation, creature feature, fish, octopus, sea, laboratory, asperger's syndrome, nazi occultism, exploitation, fishing, sheriff, mutation, mutant, supernatural, escapades, vengeance, experiment gone awry, disorder, scientist, doctor, nazi experiment, acid, drowning ...
Place:
florida, usa
Movie in categories
Most similar movies to Hydra
The list contains related movies ordered by similarity. Recommendation engine sorted out scary, psychotronic, serious and suspenseful films with plots about danger, supernatural, monster, deadly, escapades, mutant and experiment gone awry mostly in Horror, Sci-Fi and Thriller genres. Some movies like Hydra: Swamp Thing (1982), Track of the Moon Beast (1976), Brain of Blood (1971), Monster a-Go Go (1965), Spawn of the Slithis (1978). The matching attributes are highlighted in bold.
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Genre: Horror, Sci-Fi
Country: USA
Duration: 91 min.
Story:
Dr. Alec Holland, hidden away in the depths of a murky swamp, is trying to create a new species - a combination of animal and plant capable of adapting and thriving in the harshest conditions. Unfortunately he becomes subject of his own creation and ...
Style:
campy, semi serious, captivating, exciting, psychotronic ...
Audience:
teens, boys' night
Plot:
swamp, superhero, creature, monster, laboratory, rescue, good versus evil, superhuman powers, transformation, chase, villain, heroic mission ...
Time:
80s
Place:
florida, washington d.c., europe, usa, holland
⇓ similarity ⇓
100%
Genre: Horror, Sci-Fi
Country: USA
Duration: 90 min.
Story:
Professor "Johnny Longbow" Salina, a man who really knows his stews, introduces Paul Carlson to the practical-joking Kathy Nolan. Paul and Kathy seem to hit it off rather well but, during a meteor storm, a meteorite fragment strikes Paul, ...
Style:
exciting, serious, suspenseful, rough, natural horror ...
Audience:
boys' night, teens
Plot:
monster, mutant, experiment gone awry, buddies, supernatural, escapades, beast, transformation, exploitation, redsploitation, creature, alien ...
⇓ similarity ⇓
54%
Genre: Horror, Sci-Fi
Country: USA, Philippines
Duration: 87 min.
Story:
Amir, the benevolent ruler of Kalid, is dying, but there is hope. Freshly deceased, he is flown to the United States where Dr. Trenton transplants his brain into the body of a simpleton in a classic "assistant got the wrong kind of body" ...
Style:
psychotronic, psychological, serious, scary, rough ...
Plot:
mad scientist, acid, monster, body horror, creature feature, exploitation, paranormal, brain transplant, voyeur, zombie, escapades, deadly creature ...
Time:
70s
⇓ similarity ⇓
48%
Genre: Horror, Sci-Fi
Country: USA
Duration: 68 min.
Story:
The plot concerns an American astronaut, Frank Douglas, who mysteriously disappears from his spacecraft as it parachutes to Earth. The vanished astronaut is apparently replaced by or turned into a large, radioactive, humanoid monster. A team of ...
Style:
surprise ending, campy, suspenseful, scary, surreal ...
Plot:
creature feature, twist the dance, giant, astronaut, alien, murder, giant creature, suspense, laboratory, countryside, experiment gone awry, secret formula ...
⇓ similarity ⇓
46%
Movie in collections
Genre: Horror, Sci-Fi
Country: USA
Duration: 86 min.
Story:
A nuclear leak creates a mutant Slithis sea monster, which terrorizes the variety of pets, winos, and hippies who hang around Venice, California.
Style:
psychotronic, surprise ending, cult film
Plot:
monster, creature feature, exploitation, sea, mutant, scientist, nuclear, alien, octopus, sea monster, female nudity, violence ...
Place:
california
⇓ similarity ⇓
44%
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Movies similar to Prophecy
798
Genre: Horror, Sci-Fi
Country: USA
Duration: 98 min.
Story:
A rural Colombian village is attacked by a horrible sea serpent, aroused by industrial pollution of a nearby lake. Based on a real event that took place in June of 1971.
Style:
natural horror, campy, scary, serious, rough ...
Audience:
teens, boys' night
Plot:
monster, deadly creature, creature feature, snake, giant monster, dinosaur, shark, octopus, mutant, environmentalism, disorder, heroes ...
Time:
70s, 20th century, prehistory
Place:
colombia, latin america
⇓ similarity ⇓
44%
Genre: Sci-Fi, Horror
Country: Mexico, USA
Duration: 79 min.
Story:
A scientific team in Mexico discover a pool of unusual baby "octopus-like" specimens. Gathering a few for analysis back at the lab, it is soon discovered that the critters belong to a gangly six-foot half man/half octopus-like creature, ...
Style:
natural horror, scary, semi serious, suspenseful, bleak ...
Plot:
octopus, monster, mutant, trailer home, cave, mutation, creature, environmentalism, village, village life, supernatural, babies and infants ...
Time:
70s
Place:
mexico, latin america
⇓ similarity ⇓
42%
Genre: Horror, Sci-Fi
Country: Canada
Duration: 89 min.
Story:
A headstrong animal-rights activist group plans a raid on a bio-tech company to stop the cruelty. They...
Style:
serious, scary, captivating
Plot:
survival, experiment gone awry, genetic engineering, mutant, supernatural, confined, deadly creature, laboratory, father daughter relationship, breaking and entering, suspense, youth ...
Time:
21st century
⇓ similarity ⇓
40%
Movie in collections
Genre: Horror, Sci-Fi
Country: USA
Duration: 54 min.
Story:
A Russian scientist is arriving to the states caring secret information’s. Disembarking from his plane, he and his American contacts are attacked by a pair of KGB assassins (Anthony Cardoza and John Morrison). Later, it is revealed that he has ...
Style:
suspenseful, exciting, scary, rough, psychotronic ...
Audience:
boys' night
Plot:
monster, deadly creature, mutant, nuclear bomb, mad scientist, chaos, psychopath, chase, murder, kgb, killer, nuclear testing ...
Time:
60s
⇓ similarity ⇓
39%
Genre: Horror, Sci-Fi, Thriller
Country: USA
Duration: 88 min.
Story:
Giant mutant rabbits terrorize the southwest!!
Style:
serious, suspenseful, scary, natural horror, absurd ...
Plot:
giant animal, mutation, mutant, monster, gene manipulation, experiment gone awry, creature feature, chaos, dangerous animal, heroes, mad scientist, giant monster ...
Time:
70s
Place:
arizona, usa
⇓ similarity ⇓
39%
Also search:
Forbidden World similar movies
Genre: Horror, Sci-Fi
Country: USA, Japan
Duration: 93 min.
Story:
A mad scientist creates man eating creatures from carnivorous plants.
Style:
natural horror, experimental, scary, serious, suspenseful ...
Plot:
mad scientist, mad doctor, exploitation, nasa, disorder, mutant, jungle, hotel, village, village life, resort, alien encounter ...
Time:
20th century, 60s
Place:
japan
⇓ similarity ⇓
37%
Genre: Horror, Sci-Fi
Country: USA
Duration: 80 min.
Story:
A mad scientist is conducting experiments with evolution on the locals deep in the rural swamps of Texas.
Style:
slasher, scary, serious, psychotronic, retro ...
Plot:
monster, mad scientist, swamp, evolution, alligator, swamp monster, scientist, voodoo, supernatural ability, rivalry, supernatural, dangerous animal ...
Time:
60s
Place:
texas, usa
⇓ similarity ⇓
35%
Genre: Horror, Sci-Fi, Thriller
Country: USA
Duration: 102 min.
Story:
A Savage beast, grown to monstrous size and driven mad by toxic wastes that are poisoning the waters, spreads terror and death on a Maine countryside.
Style:
serious, scary, rough, suspenseful, natural horror ...
Audience:
boys' night, teens
Plot:
creature feature, monster, toxic, contamination, bear, environmentalism, mutant, rivalry, experiment gone awry, animal life, pregnancy, giant monster ...
Time:
70s
Place:
maine, usa
⇓ similarity ⇓
35%
Genre: Horror, Sci-Fi
Country: USA
Duration: 67 min.
Story:
Returning from the planet Venus, an errant NASA spacecraft crashes into the ocean, spilling its radioactive cargo. Enveloped by a radioactive mass, a rabid weasel is transformed into a gigantic killer mutant. Prowling the countryside, the huge ...
Style:
psychotronic, cult film, weird
Plot:
mad scientist, monster, creature feature, murder, exploitation, scientist, violence, bicycle, camp, mutation, dead children, gore ...
⇓ similarity ⇓
34%
Genre: Horror, Sci-Fi
Country: USA
Duration: 84 min.
Story:
A black hole hits North Wisconsin and opens a door to other dimensions. Giant 15 meter spiders emerge from it, who have an appetite for human flesh! Dr. Jenny Langer and Dr. Vance from the NASA try to save the world.
Style:
scary, suspenseful, semi serious, natural horror, captivating ...
Audience:
teens, boys' night
Plot:
spider, small town, giant spider, evil alien, monster, experiment gone awry, save the world, giant monster, deadly creature, amateur detective, supernatural, disorder ...
Time:
70s
Place:
usa, wisconsin
⇓ similarity ⇓
33%
Also search:
Films like From Beyond
Genre: Sci-Fi, Horror
Country: USA, Canada
Duration: 92 min.
Story:
After freezing up under pressure in the emergency room, Dr. Cahill decides to spend a few months unwinding on a little Maine island where he immediately gets off on the wrong foot with the locals. Meanwhile, a body has washed up on shore infested ...
Style:
scary, serious, suspenseful, natural horror, atmospheric
Plot:
insect, cockroach, suspense, mad scientist, dangerous animal, survival, deadly creature, rescue, experiment gone awry, plague, isolation, family in danger ...
Time:
90s
Place:
maine, usa, atlantic ocean, boston, new england
⇓ similarity ⇓
31%
909
Genre: Horror, Sci-Fi
Country: Canada
Duration: 87 min.
Story:
Something is alive beneath the surface of the graveyard. Something with the power to destroy and the power to heal. One man, a cop, is determined to kill this mysterious creature. Another, a scientist, is determined to capture and save this ...
Style:
serious, suspenseful, tense, psychotronic, cult film
Audience:
boys' night
Plot:
monster, creature, suspense, survival, dangerous animal, experiment gone awry, tunnel, special agents, supernatural, scientist, creature feature, revenge ...
Time:
prehistory
⇓ similarity ⇓
31%
Genre: Horror, Sci-Fi, Thriller
Country: USA
Duration: 100 min.
Story:
A murderous baboon escapes from a laboratory and roams the research building, and begins to kill some teenagers who are also in the building playing a Dungeons-and-Dragons type game.
Style:
serious, scary, suspenseful, rough, natural horror ...
Plot:
monkey, medical school, laboratory, animal experimentation, scientist, animal attack, mutant, isolation, captivity, monster, killer animal, baboon ...
Time:
80s, 20th century
⇓ similarity ⇓
31%
Movie in collections
Genre: Adventure, Horror, Sci-Fi
Country: Philippines
Duration: 81 min.
Story:
A kidnapped diver is taken to an island inhabited by a mad scientist and his half-animal, half-human creations.
Style:
serious, scary, suspenseful, psychotronic
Plot:
exploitation, island, monster, kidnapping, evil, mad scientist, experiment, disorder, mutant, animal life, zombie, dangerous animal ...
Time:
70s
⇓ similarity ⇓
31%
Genre: Horror, Sci-Fi
Country: USA
Duration: 98 min.
Story:
A scientist engineers a group of genetically engineered cyborgs for use as "super soldiers" to fight U.S. wars in the Middle East. However, things get ugly when the cyborgs malfunction and turn on their creators.
Style:
exciting, serious, rough, suspenseful, futuristic ...
Audience:
boys' night
Plot:
super soldier, superhuman powers, mad scientist, mutant, experiment gone awry, monster, terrorism, soldier, deadly creature, battles, technology gone awry, rivalry ...
Time:
20th century, 80s
⇓ similarity ⇓
31%
Also search:
Movies similar to Humanoids from the Deep
Genre: Horror, Sci-Fi
Country: USA
Duration: 85 min.
Story:
A mad scientist implants an electronic device into the brain of an injured soldier, which turns him into a psychotic killer.
Style:
psychotronic, campy, scary, serious, rough ...
Plot:
zombie, mad scientist, exploitation, psychopath, chaos, disorder, mutant, technology gone awry, chaos and mayhem, frame up, experiment gone awry, plague ...
Time:
70s
⇓ similarity ⇓
31%
Genre: Horror, Sci-Fi
Country: USA
Duration: 80 min.
Story:
They're not human. But they hunt human women. Not for killing. For mating.
Style:
scary, intense, suspenseful, slasher, splatter ...
Audience:
teens, boys' night
Plot:
exploitation, rape, raped by monster, monster, sea monster, survival, female nudity, fishing village, mad scientist, animal attack, fisherman, creature feature ...
Time:
80s, 20th century, 70s
Place:
california
⇓ similarity ⇓
30%
Genre: Horror, Sci-Fi, Thriller
Country: USA
Duration: 93 min.
Story:
Amanda's deathbed request to her son, John, was for him to destroy all the lab notes etc. from her last experiment. She also blurts out he had a brother. At the funeral John meets Melissa, who claims to be his mothers biggest fan. Together with ...
Style:
scary, suspenseful, intense, dark, exciting ...
Audience:
teens
Plot:
mutant, monster, suspense, genetics, laboratory, mad scientist, murder, death, creature, secrets, transformation, experiment gone awry ...
Time:
80s
⇓ similarity ⇓
29%
Movie in collections
Genre: Action, Adventure, Comedy, Horror, Sci-Fi, Thriller
Country: USA
Duration: 92 min.
Story:
The concept is based on a true story concerning an exotic species of eels that are released in the southeast from Asia. They breathe air and can survive on land.
Style:
serious, suspenseful, scary, rough, natural horror
Plot:
eel, mutant, mad scientist, survival, dangerous animal, experiment gone awry, wilderness, swamp, monster, creature feature, animal attack, killer fish ...
Time:
2000s, 21st century
Place:
florida, usa, everglades
⇓ similarity ⇓
28%
Genre: Horror, Sci-Fi
Country: UK
Duration: 92 min.
Story:
A mad scientist (Donald Pleasence) crosses plants with people, and the results wind up in a sideshow.
Style:
slasher, funny, scary, serious, rough ...
Audience:
boys' night
Plot:
monster, exploitation, mad scientist, mutant, human experiment, murder, experiment, transformation, alien, amusement park, body horror, freak show ...
Time:
70s
Place:
europe, england, london
⇓ similarity ⇓
28%
Also search:
Films like Swamp Thing
Genre: Horror, Sci-Fi
Country: USA
Duration: 89 min.
Story:
Horrifying shocker as a biological experiment goes haywire when meat-eating mutant roaches invade an island community, terrorizing a peaceful New England fishing village and hideously butchering its citizens.
Style:
suspenseful, serious, rough, scary, natural horror ...
Audience:
teens
Plot:
cockroach, insect, experiment, lighthouse, monster, experiment gone awry, scientist, dangerous animal, island, animal attack, killer animal, exploitation ...
Time:
80s
Place:
new england, usa
⇓ similarity ⇓
28%
Genre: Horror, Sci-Fi, Western
Country: USA
Duration: 88 min.
Story:
Dr. Frankenstein's Granddaughter Maria, and her brother assistant Rudolph, moved to the old west because the lightning storms there are more frequent and intense, which allows them to work on the experiments of their grandfather. But the ...
Style:
scary, campy, tense, disturbing, serious ...
Audience:
boys' night
Plot:
mad scientist, frankenstein, suspense, rescue, experiment gone awry, supernatural, mutant, rivalry, criminal, family tradition, duplicity, laboratory ...
Time:
19th century
Place:
arizona, mexico
⇓ similarity ⇓
28%
Genre: Sci-Fi, Horror
Country: USA
Duration: 92 min.
Story:
Police lieutenant detective Thomas 'Thom' Randall's steady girl-friend, Dr. Jennifer 'Jen' Allen, is Dr. Aaron Michaels's main assistant on his pharmaceutical firm Bellion's research program to cure the highly ...
Style:
suspenseful, scary, tense, perverse, natural horror ...
Audience:
boys' night
Plot:
mosquito, insect, monster, supernatural, suspense, experiment gone awry, swat team, track down, transformation, virus, escaped prisoner, scientist ...
Time:
21st century
⇓ similarity ⇓
28%
Genre: Action, Adventure, Comedy, Horror, Sci-Fi, Thriller
Country: Aruba, USA, Germany
Duration: 92 min.
Story:
When he began fusing human and shark DNA, his colleagues laughed at him. Now his creation is taking his revenge, and they aren't laughing anymore.
Style:
serious, scary, rough, natural horror, psychotronic
Plot:
shark, monster, creature feature, suspense, mad scientist, island, mutant, supernatural, rivalry, escapades, vengeance, heroes ...
Time:
21st century
⇓ similarity ⇓
28%
Genre: Action, Adventure, Comedy, Horror, Sci-Fi, Thriller
Country: USA
Duration: 89 min.
Story:
The U.S. Navy's special group "Blue Water" builds a half-shark, half-octopus for combat. But the sharktopus escapes and terrorizes the beaches of Puerto Vallarta.
Style:
semi serious, scary, absurd, natural horror, campy ...
Audience:
teens
Plot:
monster, killer shark, creature feature, shark attack, shark, sea monster, mad scientist, save the day, dangerous animal, mutant, technology gone awry, experiment gone awry ...
Time:
21st century
Place:
usa, latin america, mexico
⇓ similarity ⇓
27%
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