Feature film — 1946
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.
The note
Stay for the details.
A high-signal pick with 3 votes.
Universal Pictures
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Director: Vernon Keays
On screen
Cast & crew
Edmund MacDonald
Anthony Waldron
Pamela Blake
Shirley Clinton
Danny Morton
Derek Lamont
Virginia Brissac
Cornelia Waldron
Joseph Crehan
Dan Blair
Jack Ingram
William Shrag
Dennis Moore
Agent Grant Farrell
Richard Martin
Detective Lt. Kirby Walsh
Byron Foulger
Wetherby
Jane Randolph
Marina Lamont
William Ching
Jim Farrell
Joe Haworth
Donninger
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