Ben Travers wrote the screenplay, adapting his own play, the original 1930 Aldwych farce of the same title.

[1] The film was made at British and Dominion's Elstree Studios with sets designed by the art director Lawrence P. Williams.

Police Constable Mahoney, with the help of the affable Clifford Tope, outwits a criminal gang that operates from a gambling club.

[1] Cast members marked * were the creators of the roles in the original stage production; Michael Mahoney was called Michael Marsden in the stage play.

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