Night Key (1937)

Night Key (1937)

"Night Key" is an American science fiction crime film released in 1937, directed by Lloyd Corrigan. The plot follows an aging inventor, David Mallory, who develops a revolutionary burglar alarm system called the "Night Key." When his former business partner and lawyer betray him and steal his invention, Mallory seeks revenge by using his knowledge of the device to help a criminal gang commit robberies. The film stars Boris Karloff as David Mallory, Warren Hull as Jim Travers, and Jean Rogers as Joan Mallory.

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