A fiendish killer lurks at the opera! Weird! Thrilling! The Master Minds of Crime Match Wits Against Each Other!

A dangerous amnesiac escapes from an asylum, hides in the opera house, and is suspected of getting revenge on those who tried to murder him 13 years ago.

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Main Cast: Warner Oland, Boris Karloff, Keye Luke, William Demarest, Guy Usher, Margaret Irving, Gregory Gaye, Nedda Harrigan, Frank Conroy, Charlotte Henry

Director: H. Bruce Humberstone

Writer: Charles Belden

Editor: Alex Troffey

Cinematographer: Lucien N. Andriot

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