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 it's evident they have rescued a bloodsucking monster. Uses footage from Encounter in Space (1963).
Florence Marly
Alien Queen
Basil Rathbone
Dr. Farraday
John Saxon
Allan Brenner
Judi Meredith
Laura James
Dennis Hopper
Paul Grant
Robert Boon
Anders Brockman
Don Eitner
Tony Barrata
Virgil Frye
Control Panel
