Clocking in at 77 minutes, it ranks as the longest "B" picture made on Poverty Row in the 1940s.
George Zucco's estate set was reused by the cost-conscious set designers at PRC for Zucco's crypt in Dead Men Walk (1943).
Was featured on MST3K season 1 episode 3.
Producer Sigmund Neufeld and director Sam Newfield were brothers. Sam "Anglicized" the family name and Sigmund didn't.
The film was refused a UK cinema certificate in 1942, but passed uncut several years later.