Secrets of Scotland Yard is a 1944 American thriller film directed by George Blair and starring Edgar Barrier, Stephanie Bachelor and C. Aubrey Smith.

[1] The screenplay was by Denison Clift, adapting one of his own stories "Room 40, O.B."

from Blue Book Magazine.

[2] It concerns a British police detective who goes undercover to root out a Nazi spy in Britain's decoding organization.

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