A small-town doctor learns that the population of his community is being replaced by emotionless alien duplicates.

Frankenstein's unscrupulous colleague, Dr. Bohmer, plans to transplant Ygor's brain so he can rule the world using the monster's body, but the plan...

Government agents find evidence of extraterrestrial life at the South Pole.

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...

A social misfit, Willard is made fun of by his co-workers, and squeezed out of the company started by his deceased father by his boss. His only...

In 19th century London, a sex maniac sneaks into the engagement party of Dr. Henry Jekyll and Miss Fanny Osbourne, turning the event into a...

Greedy sailors capture a giant lizard off the coast of Ireland and sell it to a London circus. Then its mother shows up.

Marine atomic tests cause changes in the ocean's ecosystem resulting in dangerous blobs of radiation and the resurrection of a dormant dinosaur which...

An unsuspecting university professor is an unwitting accomplice in a foiled Chinese cocaine deal. Wrongly imprisoned, he escapes to take his revenge...

A wisecracking New York reporter intrudes on a research scientist's quest to unmask The Moon Killer.