An agent from a distant planet has been sent to earth to ship large quantities of blood to his world, where a plague is ravaging the populace. He comes equipped with an interstellar matter transmitter, telepathic mind-control powers, and deathray-shooting eyes. Because he is also affected by the blood disease, he gains control of the town's physician and has him place a nurse at his disposal, while he collects live humans for fresh blood; but gains the nurse's suspicions, along with those of her boyfriend - a town police officer.
Paul Birch
as Paul Johnson
Beverly Garland
as Nadine Story
Morgan Jones
as Harry Sherbourne
William Roerick
as Frederick W. Rochelle
Jonathan Haze
as Jeremy Perrin
Dick Miller
as Joe Piper
Anna Lee Carroll
as Davanna Woman
Pat Flynn
as Simmons
Barbara Bohrer
as Waitress
Roy Engel
as Desk Sergeant
Tamar Cooper
as Joanne
Harold Fong
as Speciman