Best movies like Spasms

Similar in 77%

Sting of Death (1966)

Plot Summary:

A mutant jellyfish stalks biology students in the Florida everglades.

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Food of the Gods II (1989)

Plot Summary:

A growth hormone experiment gets out of hand, when the the resulting giant man-eating rats escape, reaking havoc on the unsuspecting campus. Much blood-letting follows.

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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.

Similar in 76%

They Nest (2000)

Plot Summary:

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 with a strange type of carnivorous cockroach. But when Dr. Cahill tries to warn the townsfolk of the danger, they are naturally skeptical. Will they realize the truth before it's too late?.

Similar in 75%

Decoys (2004)

Plot Summary:

Luke and Roger are just another couple of college guys trying to lose their virginity. But when Luke sees something unusual, he begins to suspect that the girls on campus aren't exactly...human.

Similar in 86%

Ticks (1993)

Plot Summary:

Teens camping in a northern California retreat are terrorized by mutant insects created by evil, polluting pot farmers.

Similar in 77%

The Dark (1993)

Plot Summary:

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 miraculous being. Stalking the creature in it's subterranean habitat, neither man is aware of the battle they are about to start. A battle for science, survival and revenge.

Similar in 90%

Blue Monkey (1987)

Plot Summary:

While working in a greenhouse, a man receives an insect bite after touching an exotic plant. Immediately, he falls ill and is taken to an emergency room where the doctors diagnose him as suffering from an unknown bacteria, and a strange parasite which emerges from his mouth as a large slimy wormlike creature. Soon, there are more cases of bacterial infection, but the more immediate problem for the hospital is the wormlike creature which after accidental exposure to a genetic growth stimulant grows to monstrous proportions and starts a reign of terror and bloodshed in the hospitals abandoned wing.

Similar in 87%

The Creature Below (2016)

Plot Summary:

A young scientist discovers a malevolent entity which sets her on a bloody descent into the jaws of insanity.

Similar in 81%

The Navy vs. the Night Monsters (1966)

Plot Summary:

US Navy battles monsters unearthed from the frozen arctic.

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Sssssss (1973)

Plot Summary:

David, a college student, is looking for a job. He is hired by Dr. Stoner as a lab assistant for his research and experiments on snakes. David also begins to fall for Stoner's young daughter, Kristina. However, the good doctor has secretly brewed up a serum that can transform any man into a King Cobra snake-and he plans to use it on David.

Similar in 86%

Venom (1981)

Plot Summary:

International terrorists attempt to kidnap a wealthy couples child. Their plan comes unstuck when a deadly Black Mamba, sent by mistake instead of a harmless snake, escapes and the terrorists and several hostages are trapped in the boy's London home.

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Sabertooth (2002)

Plot Summary:

Using fossilized DNA, a scientist resurrects one of nature's most fearsome predators, a sabretooth tiger. Scientific ambition turns deadly, however, when the creature escapes and begins savagely stalking its prey - the human race.

Similar in 87%

Piranha (1995)

Plot Summary:

Doctor Baines has been conducting genetic experiments on piranhas and has made them virtually unstoppable. Unfortunately, his assistants, Maggie and Paul, accidentally release the hybrids into the Lost River Lake threatening to destroy everyone in their path. Can they prevent the flesh-eating piranhas from escaping into the ocean and spawning?.

Similar in 88%

Python (2000)

Plot Summary:

Sleepy New Haven California is a small town with a big problem. A sixty foot slithering horror has arrived and shattered the town's tranquillity on it's path of death and destruction... Growing violent and more savage with each attack the gigantic creature soon becomes an unstoppable feeding machine raging beyond control of it's creator, leaving only the stripped bones of it's victims in it's wake.

Similar in 87%

Snake Island (2002)

Plot Summary:

A group of American tourists heading down an African river make a brief stop at Snake Island, an island that has been virtually abandoned for years. When they end up getting trapped on the island overnight, they find thousands of deadly snakes intent on reclaiming the tropical island for themselves.

Similar in 77%

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...?.

Similar in 86%

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.

Similar in 87%

Rabid (1977)

Plot Summary:

After undergoing radical surgery for injuries from a motorcycle accident, a young woman develops a strange phallic growth on her body and a thirst for human blood -- the only nourishment that will now sustain her.

Similar in 84%

The Brain (1988)

Plot Summary:

Dr. Blake runs a TV show called "Independent Thinkers", which is sort of a Scientology-like self-help/religion program. But he's not making his audience think any more independently - with the help of an alien organism he calls The Brain, he's using brainwashing and mind control. The only thing that stands between them and world domination is a brilliant but troubled high school student with a penchant for pranks.

Similar in 85%

Mosquito Man (2005)

Plot Summary:

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 contagious, fatal infection Guinin. A convicted murderer, whom Thom arrested, is one of their special drug test subjects, but escapes. The convict and Jen are affected by radioactively altered DNA from an experimental reactor used on mosquitoes which transfer quinine. The convict soon mutates into a mosquito-like monster, which sucks its victims dry. By the time Thom and his junior murder brigade partner Charlie Morrison figure out what happens, Jen starts mutating herself.

Similar in 90%

Harbinger Down (2015)

Plot Summary:

A group of grad students have booked passage on the fishing trawler Harbinger to study the effects of global warming on a pod of Orcas in the Bering Sea. When the ship's crew dredges up a recently thawed piece of old Soviet space wreckage, things get downright deadly. It seems that the Russians experimented with tardigrades, tiny resilient animals able to withstand the extremes of space radiation. The creatures survived, but not without mutation. Now the crew is exposed to aggressively mutating organisms. And after being locked in ice for 3 decades, the creatures aren't about to give up the warmth of human companionship.

Similar in 89%

Shivers (1975)

Plot Summary:

The residents of a suburban high-rise apartment building are being infected by a strain of parasites that turn them into mindless, sex-crazed fiends out to infect others by the slightest sexual contact.

Similar in 86%

The Thaw (2009)

Plot Summary:

At a remote Arctic research station, four ecology students discover the real horror of global warming is not the melting ice, but what's frozen within it. A prehistoric parasite is released from the carcass of a Woolly Mammoth upon the unsuspecting students who are forced to quarantine and make necessary sacrifices, or risk infecting the rest of the world.

Similar in 76%

Mega Snake (2007)

Plot Summary:

Duff Daniels (John T. Woods), the younger, stupider brother of Les (Michael Shanks), can't help himself from stealing a rare snake that's been kept in a jar by a Native American snake dealer (Ben Cardinal), and which has to follow some rules: don't let it out of the jar, then don't let it eat anything anything living, and never fear the heart of the snake.

Similar in 76%

Parasite (1982)

Plot Summary:

Paul Dean has created a deadly parasite that is now attached to his stomach. He and his female companion, Patricia Welles, must find a way to destroy it while also trying to avoid Ricus, his rednecks, and an evil government agent named Merchant.

Similar in 88%

The Deadly Spawn (1983)

Plot Summary:

Two campers in the New Jersey woods have their outdoor fun interrupted by the arrival of a meteorite crashing nearby. They go to investigate the crater, but are suddenly attacked and devoured by alien parasites who have hitched a ride to Earth. After finishing off the campers, the hungry space monsters head for a nearby town, where they make their domain in the basement of an old house soon begin polishing off one hapless inhabitant after another. Four young teenagers, plus one pre-teen boy, try to find a way to stop the angry space monsters before they reproduce and literally eat humanity.

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The Brood (1979)

Plot Summary:

A man tries to uncover an unconventional psychologist's therapy techniques on his institutionalized wife, while a series of brutal attacks committed by a brood of mutant children coincides with the husband's investigation.

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Splice (2009)

Plot Summary:

Elsa and Clive, two young rebellious scientists, defy legal and ethical boundaries and forge ahead with a dangerous experiment: splicing together human and animal DNA to create a new organism. Named "Dren", the creature rapidly develops from a deformed female infant into a beautiful but dangerous winged human-chimera, who forges a bond with both of her creators - only to have that bond turn deadly.

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From Beyond (1986)

Plot Summary:

A group of scientists have developed the Resonator, a machine which allows whoever is within range to see beyond normal perceptible reality. But when the experiment succeeds, they are immediately attacked by terrible life forms.