Unrated | | Fantasy, Horror
A young woman discovers she is the daughter of the infamous Dr. Jekyll, and begins to believe that she may also have a split personality, one of whom is a ruthless killer.
Released on a double bill with The Cyclops (1957), also starring Gloria Talbott.
He will never prowl the night again!
Dr. Lomas: Are you sure!... then laughs.
Although the film is set in the early 20th century, at one point in the background you can see a 1956 Chevy and a 1956 Ford pass by.
Television broadcasts of the padded-out version begin with a scrolling-text introduction: