Stars Coleen Gray and Phillip Terry were so into their performances as a feuding couple that they didn't even get along off-camera either.
The nurse remarks that Old Malla looks like she came right out of The Mummy's Tomb, a movie produced by Ben Pivar.
Universal (then Universal-International) made this low budget horror film because they needed a second feature to play with their U.S. release of the Hammer production The Brides of Dracula.