The Mysterious Mr. M (1946)
An evil scientist known as "Mr. M." uses a drug he has developed called "hypnotreme" to help steal submarine equipment. Federal agent Grant Farrell is dispatched to find the mysterious villain and stop his nefarious plans.
- Country : United States of America
- Genre : Action, Mystery
- Studio : Universal Pictures
- Director : Vernon Keays, Lewis D. Collins
- Cast : Edmund MacDonald, Pamela Blake, Danny Morton, Virginia Brissac, Joseph Crehan, Jack Ingram