- HD 1080
- Runtime: 66m.
- Status: Released
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- Languages: en
- Country: United States of America
- Director: William Nigh
- Stars: Patric Knowles, Lionel Atwill, Anne Gwynne, Mantan Moreland, Samuel S. Hinds
- keywords: gangster, gorilla, detective, murder, whodunit, private detective, police investigation, guard dog, murder mystery
- Production_studio: Universal Pictures
- Slogan: FOLLOW HIM -- at Risk of Insanity! FIND HIM -- and You'll Never Return!
- The The Strange Case of Doctor Rx is featured in the top rankings of 1942
- #33 in Top Mystery Movies of 1942
- #15 in Top Horror Movies of 1942
Private eye Jerry Church is hired by a criminal defense lawyer after five mobsters he has gotten acquitted are apparently strangled by a serial killer.