A small town doctor mistakenly ingests an experimental drug made from the blood of vampire bats which transforms the kindly medic into a bloodthirsty monster.
Dr. Paul Beecher
Carol Butler
Buck Donnelly
Betsy Beecher
Dr. Will Beaumont
Sgt. George Ryan
Willy Warner
Marion Wilkins
Henry Winston
Mrs. Carrie Dietz (uncredited)