The arrival in a small mountain town of a dissheveled stranger launches a series of murders committed by some sort of animal. As the town doctor and his daughter attempt to help the stranger, the sheriff investigates the murders; and they uncover a sinister experiment involving two rogue scientists, a car accident victim, his wife and children, and a serum that causes a man to turn into a ravaging werewolf.
as Duncan Marsh
as Sheriff Jack Haines
as Amy Standish
as Dr. Jonas Gilcrist
as Dr. Morgan Chambers
as Dr. Emery Forrest
as Deputy Ben Clovey
as Mrs. Helen Marsh
as Chris Marsh
as Deputy (uncredited)
as Hank Durgis
as Hoxie
as Ma Everett - Old Woman (uncredited)
as Joe Mitchell - Mugger (uncredited)
as Cora (uncredited)
as Narrator (voice) (uncredited)
as Mack Fanning
as Townsman (uncredited)
as Townsman (uncredited)
