The Mysterious Mr. M (1946) is a action, mystery directed by Vernon Keays rated 5.2/10.
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.
Released: 1946-07-23
Duration: 3h 47m
Country: United States of America
Director: Vernon Keays, Lewis D. Collins
Writer: Barry Shipman, Paul Huston, Joseph F. Poland
Cast: Edmund MacDonald, Pamela Blake, Danny Morton, Virginia Brissac
Production: Universal Pictures
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