Best movies like Hydra

Similar in 86%

Night of the Lepus (1972)

Plot Summary:

Giant mutant rabbits terrorize the southwest!!.

Similar in 88%

Panic in the tower (1990)

Plot Summary:

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.

Similar in 75%

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.

Similar in 87%

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).

Similar in 89%

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.

Similar in 81%

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 88%

Octaman (1971)

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….

Similar in 90%

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.

Similar in 87%

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 85%

Warriors of Terra (2006)

Plot Summary:

A headstrong animal-rights activist group plans a raid on a bio-tech company to stop the cruelty. They.

Similar in 87%

Carnosaur (1993)

Plot Summary:

After being driven to extinction, great bloodthirsty dinosaurs come back to life with the assistance of a demented genetic scientist. She plans to replace the human race with a super-race of dinosaurs who will not pollute the planet.

Similar in 90%

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.

Similar in 84%

The Brain That Wouldn't Die (1962)

Plot Summary:

Dr. Bill Cortner and his fiancée, Jan Compton, are driving to his lab when they get into a horrible car accident. Compton is decapitated. But Cortner is not fazed by this seemingly insurmountable hurdle. His expertise is in transplants, and he is excited to perform the first head transplant. Keeping Compton's head alive in his lab, Cortner plans the groundbreaking yet unorthodox surgery. First, however, he needs a body.

Similar in 75%

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 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.

Similar in 85%

Humanoids from the Deep (1980)

Plot Summary:

They're not human. But they hunt human women. Not for killing. For mating.

Similar in 79%

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.