The Substitute

The first manned expedition to Mars is invaded by an unknown life form, which stows away on the rescue ship.

Kaleb Allen is plagued by recurring nightmares, where a dark presence watches him every night. Fearing sleep, he's unable to escape these vivid...

A janitor at an alien night-club gets his wish to be a singer.

An alien impregnates an Earth woman so she can deliver an alien "messiah" that will rule the world. A newspaper reporter finds out what's going on...

A mute alien with the appearance of a black human is chased by outer-space bounty hunters through the streets of Harlem.

A documentary filmmaker travels to a UFO convention in New Mexico where he meets a local artist with a dark secret. As they follow a trail of clues...

A powerful cosmic force is turning Earth women into queen bees who kill men by wearing them out sexually.

An undeniably beautiful alien is sent to Earth to study the complex mating rituals of human beings, which leads to the young interstellar traveler...

Secretly engineered and blasted into space by government scientists, a vile monster crash-lands back on Earth and begins killing everyone it...

An alien from planet Davanna, whose population has developed a terminal blood disease caused by nuclear radiation, is sent to Earth to acquire fresh...

An alien from Venus tries to take over the world with the help of a disillusioned human scientist, as his wife, his best friend and the friend's wife...

A spaceship is sent to Mars after an alien distress signal is picked up. They find one survivor, but when a crew member is found drained of blood...