A doctor's research into the roots of evil turns him into a hideous depraved fiend.

Dr. Henry Jekyll believes that there are two distinct sides to men - a good and an evil side. He believes that by separating the two, man can become liberated.

An obsessed scientist conducts profane experiments in evolution, eventually establishing himself as the self-styled demigod to a race of mutated, half-human abominations.

Science Fiction Horror

Working in Dr. Cranley's laboratory, scientist Jack Griffin was always given the latitude to conduct some of his own experiments.

Science Fiction Horror

Dr. Janos Rukh discovers a certain type of radium that has almost magical healing properties. But the element has a dangerous side, too, and it has already started affecting Rukh.

Science Fiction Horror

Wrongfully convicted of a robbery and murder, Paul Lavond breaks out of prison with a genius scientist who has devised a way to shrink humans.

Science Fiction Horror

Four explorers are summoned to Peru by the brilliant physicist Dr Thorkel. They discover a rich source of radium and a half-mad Thorkel who shrinks them down to one-fifth their normal size when they threaten to stop his unorthodox experimentation.

Science Fiction Horror

A physician on death row for a mercy killing is allowed to experiment on a serum using a criminals' blood, but secretly tests it on himself.

Science Fiction Horror

Dr. Jekyll believes good and evil exist in everyone and creates a potion that allows his evil side, Mr. Hyde, to come to the fore.

Mad scientist injects his enemies with acromegaly virus, causing them to become hideously deformed.

A millionaire's brain is preserved after his death by a scientist and his two assistants, only to create a telepathic monster.

Science Fiction Horror

Paula, the ape woman, has survived the ending of CAPTIVE WILD WOMAN and is running around a creepy old sanitarium run by the kindly Dr.

Scientists and US Air Force officials fend off a blood-thirsty alien organism while investigating at a remote arctic outpost.

Science Fiction Horror

Boxer Tommy Nelson is accused of killing his manager. While detectives Bud and Lou investigate they come across an invisibility formula with which Tommy injects himself rather than face the police.

Science Fiction Horror

While watching for a planet that may collide with earth, scientists stationed in Scotland are approached by a visitor from outer space.

Science Fiction Horror

The son of the notorious Dr. Henry Jekyll is determined to prove that his father's reputation has been unjustly deserved.

As American policemen in London, Bud and Lou meet up with Dr. Jekyll and Mr. Hyde.

When scientists exploring the Amazon River stumble on a “missing link” connecting humans and fish, they plan to capture it for later study.

In a tributary of the Amazon, a monster – half-man, half-fish – is captured and placed in a reservoir in a Florida national park to be observed by scientists.

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