From The Grindhouse Cinema Database
- Released on May 5, 1965
- Running time: 105 minutes
- Production Co.: William Conrad Productions
- Distribution Co.: Warner Bros. Pictures
- Directed by William Conrad
- Written by Lawrence B. Marcus (story), Mann Rubin (screenplay)
- Starring: Jeffrey Hunter, Anne Francis, Dana Andrews
- The Most Fiendish Idea Ever Conceived By The Human Brain!
- Scientist Jim Grayam saves his boss' wife from suicide but falls in-love with her and plots to kill her husband by pretending to be criminally insane.