Larva

Near the end of the 19th century, Prof. John Mayer and his assistant, the scientist Dr. Isabel Reed, accidentally invent a powerful ray. An alien travels to Earth to destroy the machine since it would be a threat to the universe. He initially possesses the mind of Thomas, a sex maniac and serial killer, to get close to Mayer during the demonstration of the machine to scientists and the military. Mayer's niece, Laura, meets an acquaintance of her uncle, the chemist Dr. Paul Rosten, and Mayer invites him to join the research. When Thomas gets close to Mayer, the alien also possesses his mind in order to destroy the device and his notes. Meanwhile, Thomas is not able to control his murderous impulses and attacks several women with a straight razor.

In 1959, an alien experiment crashes to earth and infects a fraternity member. They freeze the body, but in the modern day, two geeks pledging a fraternity accidentally thaw the corpse, which proceeds to infect the campus with parasites that transform their hosts into killer zombies.

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.

A group of toy store employees must protect each other from a horde of parasite infected shoppers.

When some very creepy things start happening around school, the kids at Herrington High make the chilling discovery that confirms their worst suspicions: their teachers really are from another planet!

When average, law-abiding citizens suddenly turn to a life of hedonistic behavior and violent crime, Detective Tom Beck is tasked with helping young FBI agent Lloyd Gallagher determine the cause.

In Oklahoma, Agnes, a lonely waitress living in an isolated and dilapidated roadside motel, meets Peter, a quiet and mysterious man with whom she establishes a peculiar relationship.

A motivational speaker, plagued by an uncontrollable itch on her head, becomes infected with a parasitic demon from her homeland.

The city is infested with mysterious parasites that bore into their human hosts to increase their host's power and sexual desires. A beautiful girl, Suzune Arizono is a vet with a specialty in parasites, and who fights daily to end the plague. Before long, she learns that an evil organization, the Kito Zaibatsu, is behind the explosive growth of this ferocious parasite. She also learns that her long-missing father, Dr. Arizono, is also involved. In order to crush the Kito Zaibatsu's ambition and to see her father again, Suzune takes on the fight without regard to the danger involved.

In the final days of WWI a shell-shocked soldier must lead a mission deep beneath the trenches to stop a German plot that could turn the tide of the war.

Brian comes under the addictive spell of a parasite with the ability to induce euphoric hallucinations in its hosts.