When a good-for-nothing man named Dan is stabbed to death and his arm broken, Charlie Chan is on the case. His first clue comes from the victim's sister, who noticed a prowler wearing a glow-in-the-dark wristwatch.

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Main Cast: Warner Oland, Heather Angel, Roger Imhof, John Warburton, Walter Byron, Ivan F. Simpson, Virginia Cherrill, Francis Ford, Robert Warwick, Frank McGlynn Sr.

Director: Hamilton MacFadden

Writers: Lester Cole, Marion Orth

Editor:

Cinematographer:

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