Best movies like Octaman
Last updated March 2024
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Plot Summary:
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, that's pretty angry and wants her 'babies' returned….
IMDB Rating: 3.3
IMDB Votes: 1000
Genere: Sci-Fi, Horror
Country: Mexico, USA
Duration: 79 min
Plot tags: natural horror, retro, grindhouse, scary, offbeat, bleak, suspenseful, semi serious, psychotronic, independent film
Best tv shows and movies like Octaman (1971):
Similar in 75%
'It's Alive!' (1969)
Plot Summary:
A farmer traps three people in a cave with his pet prehistoric monster.
IMDB Rating: 2.7
IMDB Votes: 954
Genere: Horror, Sci-Fi
Country: USA
Duration: 80 min
Plot tags: natural horror, independent film, scary, offbeat, semi serious, psychotronic, spoof, parody, campy
Similar in 87%
Aberration (1997)
Plot Summary:
A nature field researcher is investigating the strange extinction of small animals and insects in the area, which indicates that something is wrong. His suspicions are soon to be proven right when he meets May, who lives in a cabin in the forest nearby. May says that her house is infested by small creatures that she thinks are mice or rats. When the couple search the house further, they notice that they're not rodents or insects. They are fast evolving lizards that have the appetite for animals and humans, no matter what size their prey are.
IMDB Rating: 4.6
IMDB Votes: 1000
Genere: Horror, Sci-Fi
Country: New Zealand
Duration: 93 min
Plot tags: scary, serious, suspenseful, suspense, natural horror, offbeat
Similar in 89%
The Incredible 2-Headed Transplant (1971)
Plot Summary:
Dr. Roger Girard is a rich scientist conducting experiments on head transplantation. His caretaker has a son, Danny, who, although fully grown, has the mind of child. One day an escaped psycho-killer invades Girard's home, killing Danny's father before being gunned down himself. With the maniac dying and Danny deeply unsettled by his father's death, Dr. Girard decides to take the final step and transplant the killer's head onto Danny's body.
IMDB Rating: 3.5
IMDB Votes: 2000
Genere: Horror, Sci-Fi
Country: USA
Duration: 88 min
Plot tags: scary, tense, absurd, disturbing, grindhouse, independent film, offbeat, semi serious, crying, psychotronic
Similar in 88%
Ticks (1993)
Plot Summary:
Teens camping in a northern California retreat are terrorized by mutant insects created by evil, polluting pot farmers.
IMDB Rating: 5.5
IMDB Votes: 6000
Genere: Horror, Sci-Fi
Country: USA
Duration: 85 min
Plot tags: scary, tense, rough, semi serious, natural horror, retro, dark, independent film, psychotronic, weird
Similar in 75%
Bugged (1996)
Plot Summary:
Bugged! tells the story of a group of bumbling exterminators who are called over to the house of an attractive young novelist to rid her house of insects. Unfortunately, due to a horrible chemical mix-up, the poison spray causes the bugs to grow to enormous sizes, and pretty soon everyone's trapped inside the house and have to find a way to stop the dastardly pests before they start multiplying and take over the world.
IMDB Rating: 4.1
IMDB Votes: 296
Genere: Comedy, Horror, Sci-Fi
Country: USA
Duration: 82 min
Plot tags: grindhouse, natural horror, scary, rough, offbeat, humorous, suspenseful, semi serious, psychotronic, campy
Similar in 83%
Blood Beach (1980)
Plot Summary:
Something or someone is attacking people one by one on the beach. Some of them are mutilated, but most of them are sucked into the sand, disappearing without a trace. What is the creature responsible? Where does it live, and where did it come from? And is there any chance of it reproducing? Meanwhile, David Huffman and Mariana Hill are once-almost-married old friends, reunited over the death of her mother on the beach, and searching for clues in the abandoned buildings where they used to play when they were young.
IMDB Rating: 4.5
IMDB Votes: 3000
Genere: Comedy, Horror, Sci-Fi
Country: USA, Hong Kong
Duration: 92 min
Plot tags: slasher, scary, suspense, bloody, suspenseful, semi serious, psychotronic, stylized, natural horror, spoof
Similar in 79%
The Creeping Terror (1964)
Plot Summary:
A newlywed sheriff tries to stop a shambling monster that has emerged from a spaceship to eat people.
IMDB Rating: 1.9
IMDB Votes: 5000
Genere: Horror, Sci-Fi
Country: USA
Duration: 77 min
Plot tags: cult classic, retro, suspense, detective, grindhouse, independent film, scary, offbeat, suspenseful, semi serious
Similar in 75%
Legend of Dinosaurs and Monster Birds (1977)
Plot Summary:
A Japanese geologist discovers that dinosaurs still exist in caves beneath the surface of a volcanic lake.
IMDB Rating: 4.2
IMDB Votes: 760
Genere: Sci-Fi
Country: Japan
Duration: 92 min
Plot tags: natural horror, scary, exciting, offbeat, bleak, serious, suspenseful, psychotronic, cult film
Similar in 89%
Monster a-Go Go (1965)
Plot Summary:
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 scientists and military men attempt to capture the monster — and at one point succeed, only to have him escape again. Neither the capture nor the escape are ever shown, simply mentioned by the narrator.
IMDB Rating: 1.8
IMDB Votes: 10000
Genere: Horror, Sci-Fi
Country: USA
Duration: 68 min
Plot tags: suspense, grindhouse, cult classic, independent film, surprise ending, scary, offbeat, serious, suspenseful, surreal
Similar in 89%
Piranhaconda (2012)
Plot Summary:
A hybrid creature - half piranha and half anaconda -- attacks a low-budget horror movie crew on location near her nest when her egg is stolen. Now they must outrun and kill the deadly piranhaconda as well as stop the mad scientist who stole the egg - before they all become dinner.
IMDB Rating: 2.9
IMDB Votes: 4000
Genere: Action, Horror, Sci-Fi
Country: USA
Duration: 86 min
Plot tags: exciting, semi serious, rough, suspenseful, natural horror, sexy, slasher, grindhouse, mockbuster, surprise ending
Similar in 77%
Track of the Moon Beast (1976)
Plot Summary:
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, burying itself deep in his skull, which has the unpleasant side-effect of causing Paul to mutate into a giant reptilian monster at night and go on murderous rampages. It turns out that this sort of thing has happened before, when Professor Salina rediscovers ancient Native American paintings detailing a similar event many centuries ago. Kathy, however, still loves Paul, and tries to save him.
IMDB Rating: 2.3
IMDB Votes: 4000
Genere: Horror, Sci-Fi
Country: USA
Duration: 90 min
Plot tags: exciting, serious, suspenseful, rough, cult classic, natural horror, independent film, scary, offbeat, psychotronic
Similar in 90%
Venus Flytrap (1967)
Plot Summary:
A mad scientist creates man eating creatures from carnivorous plants.
IMDB Rating: 2.7
IMDB Votes: 664
Genere: Horror, Sci-Fi
Country: USA, Japan
Duration: 93 min
Plot tags: natural horror, grindhouse, independent film, scary, offbeat, bleak, serious, suspenseful, experimental, psychotronic
Similar in 90%
The Slime People (1963)
Plot Summary:
After Los Angeles is invaded by an army of subterranean monsters a small group of people must fight for survival in the deserted metropolis.
IMDB Rating: 2.8
IMDB Votes: 2000
Genere: Horror, Sci-Fi
Country: USA
Duration: 76 min
Plot tags: serious, scary, tense, suspense, grindhouse, independent film, psychotronic, cult film
Similar in 85%
Night of the Lepus (1972)
Plot Summary:
Giant mutant rabbits terrorize the southwest!!.
IMDB Rating: 4.1
IMDB Votes: 5000
Genere: Horror, Sci-Fi, Thriller
Country: USA
Duration: 88 min
Plot tags: serious, suspenseful, natural horror, scary, suspense, absurd, horror comedy, psychotronic, funny, retro
Similar in 77%
The Giant Spider Invasion (1975)
Plot Summary:
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.
IMDB Rating: 3.2
IMDB Votes: 5000
Genere: Horror, Sci-Fi
Country: USA
Duration: 84 min
Plot tags: scary, suspenseful, semi serious, natural horror, captivating, retro, cult classic, offbeat, psychotronic, independent film
Similar in 80%
The Beast of Yucca Flats (1961)
Plot Summary:
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 wandered in range of an American nuclear test. The radiation transforms Javorsky into a mindless killing beast (the Beast).
IMDB Rating: 1.9
IMDB Votes: 10000
Genere: Horror, Sci-Fi
Country: USA
Duration: 54 min
Plot tags: suspenseful, exciting, scary, rough, psychotronic, cult classic, grindhouse, suspense, classic horror, independent film
Similar in 79%
Monster (1980)
Plot Summary:
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.
IMDB Rating: 2.6
IMDB Votes: 840
Genere: Horror, Sci-Fi
Country: USA
Duration: 78 min
Plot tags: retro, natural horror, independent film, scary, rough, serious, psychotronic, campy, cult film
Similar in 80%
Mosquito (1994)
Plot Summary:
An alien starship crashes in a swamp in a U.S. National Park. Some mosquitos begin to feed from the alien's corpses, causing them to grow to the size of a vulture. These mutant insects became very agressive, killing every human being they find. Will the few survivors fight successfully against this nightmare...?.
IMDB Rating: 4.8
IMDB Votes: 3000
Genere: Horror, Sci-Fi
Country: USA
Duration: 92 min
Plot tags: suspenseful, serious, suspense, absurd, funny, natural horror, independent film, bleak, wild, campy
Similar in 78%
The Nest (1987)
Plot Summary:
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.
IMDB Rating: 5.3
IMDB Votes: 3000
Genere: Horror, Sci-Fi
Country: USA
Duration: 89 min
Plot tags: suspenseful, rough, serious, scary, natural horror, retro, cult horror, independent film, psychotronic
Similar in 87%
C.H.U.D. (1984)
Plot Summary:
A rash of bizarre murders in New York City seems to point to a group of grotesquely deformed vagrants living in the sewers. A courageous policeman, a photo journalist and his girlfriend, and a nutty bum, who seems to know a lot about the creatures, band together to try and determine what the creatures are and how to stop them.
IMDB Rating: 5.6
IMDB Votes: 14000
Genere: Horror, Sci-Fi
Country: USA
Duration: 88 min
Plot tags: slasher, scary, atmospheric, grindhouse, rough, suspenseful, cult classic, cult horror, retro, detective
Similar in 84%
Brain of Blood (1971)
Plot Summary:
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" plot line. Dr. Trenton has a few nefarious plot twists of his own in mind, and then there's the thing with the dwarf and the women chained in the basement. It's up to Amir's friend Bob and wife Tracey to try and salvage this tale.
IMDB Rating: 3.0
IMDB Votes: 988
Genere: Horror, Sci-Fi
Country: USA, Philippines
Duration: 87 min
Plot tags: grindhouse, psychotronic, independent film, scary, psychological, rough, offbeat, serious
Similar in 85%
Hydra (1971)
Plot Summary:
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.
IMDB Rating: 2.2
IMDB Votes: 5000
Genere: Horror, Sci-Fi
Country: USA
Duration: 100 min
Plot tags: natural horror, psychotronic, grindhouse, medical horror, cult classic, independent film, scary, offbeat, serious, surprise ending
Similar in 81%
The Boogens (1981)
Plot Summary:
Otherworldly creatures inhabit the bootleg tunnels underneath a small town mining community, and they kill any of the townsfolk who invade their home.
IMDB Rating: 5.5
IMDB Votes: 3000
Genere: Horror, Sci-Fi, Thriller
Country: USA
Duration: 95 min
Plot tags: scary, rough, suspenseful, serious, slasher, psychotronic, retro, independent film, spooky
Similar in 81%
Grim (1996)
Plot Summary:
A team of spelunkers, when investigating a system of caves beneath a small town, come across a hideous creature that can move through walls.
IMDB Rating: 2.3
IMDB Votes: 1000
Genere: Horror
Country: UK
Duration: 86 min
Plot tags: rough, serious, suspenseful, scary, independent film, psychotronic
Similar in 89%
Watchers II (1990)
Plot Summary:
A genetically re-engineered dog develops a psychic link with a monster created in a lab experiment which goes awry.
IMDB Rating: 4.4
IMDB Votes: 1000
Genere: Horror, Sci-Fi
Country: USA
Duration: 101 min
Plot tags: dark, classic horror, independent film, scary, rough, serious, suspenseful, psychotronic, campy
Similar in 77%
The Incredible Melting Man (1977)
Plot Summary:
An astronaut exposed to cosmic rays outside of Saturn's rings returns to Earth and begins to melt away. Escaping from the hospital, he wanders around the backwoods looking for human flesh to eat.
IMDB Rating: 4.2
IMDB Votes: 5000
Genere: Horror, Sci-Fi
Country: USA
Duration: 86 min
Plot tags: scary, rough, serious, suspenseful, slasher, psychotronic, funny, bloody, grindhouse, independent film
Similar in 84%
Spiders (2000)
Plot Summary:
A DNA experiment on a rare breed of spider is taking place on a NASA space shuttle, when a freak meteor shower engulfs the shuttle, causing everything to go horribly wrong. One survivor is found on the ship and watched over in a secret location deep in the California desert. The problem continues, as the survivor isn't alone, as another deadly spiders climbs out of him and goes on a rampage around the ship. Curious reporter Marci Eyre must now survive, escape and warn everyone before the spider reaches outside the desert.
IMDB Rating: 3.9
IMDB Votes: 3000
Genere: Horror, Sci-Fi, Thriller
Country: USA
Duration: 94 min
Plot tags: suspense, suspenseful, serious, scary, rough, bleak, psychotronic, natural horror, spooky
Similar in 89%
The Kindred (1987)
Plot Summary:
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 some of John's friends they go to Amanda's house, but none are prepared for what they find there.
IMDB Rating: 5.6
IMDB Votes: 2000
Genere: Horror, Sci-Fi, Thriller
Country: USA
Duration: 93 min
Plot tags: scary, suspense, dark, suspenseful, intense, exciting, retro, lovecraft, funny, psychotronic
Similar in 81%
Humanoids from the Deep (1980)
Plot Summary:
They're not human. But they hunt human women. Not for killing. For mating.
IMDB Rating: 5.7
IMDB Votes: 10000
Genere: Horror, Sci-Fi
Country: USA
Duration: 80 min
Plot tags: scary, grindhouse, intense, suspenseful, slasher, cult classic, splatter, lovecraft, independent film, absurd
Similar in 90%
The Bat People (1974)
Plot Summary:
Dr. John Beck, recently married, decides to take his wife, Cathy, spelunking in Carlsbad Cavern. While there, Dr. Beck, who specializes in bats, is bitten by a fruit bat. He is then, inexplicably, transformed into a vampire bat. While he escapes and seeks help from another doctor, it is clear the treatments are not working. In fact, they are aggravating his condition. Dr. Beck unwittingly goes on a killing spree, catching the attention of Sergeant Ward.
IMDB Rating: 2.8
IMDB Votes: 3000
Genere: Horror, Romance
Country: USA
Duration: 93 min
Plot tags: scary, suspense, rough, suspenseful, natural horror, psychotronic, grindhouse, medical horror, cult classic, independent film