A doctor in 1890 England, in order to cure his wife's "sick mind," injects her with snake venom. She later gives birth to a daughter whom the villagers call "The Devil's Baby" and in a fit of fear they end up burning the family's house down. Years later a Scotland Yard detective is sent to the village to investigate a rash of deaths that are caused by snakebite.

John McCarthy
as Charles Prentice

Susan Travers
as Atheris

Geoffrey Denton
as Col. Clyde Wynborn

Elsie Wagstaff
as Aggie Harker

Arnold MarlΓ©
as Dr. Murton

John Cazabon
as Dr. Horace Adderson

Frances Bennett
as Polly, the Barmaid

Jack Cunningham
as Constable Alfie

Hugh Moxey
as Inspector

Michael Logan
as Barkis