Charlie Chan at Treasure Island

Charlie Chan at Treasure Island is a 1939 American film directed by Norman Foster, starring Sidney Toler as the fictional ChineseAmerican detective Charlie Chan, that takes place on Treasure Island during San Franciscos Golden Gate International Exposition.

That night, Charlie attends Rhadinis magic show at the Golden Gate International Exposition on Treasure Island. Rhadinis clumsy, comic acquaintance, Elmer Kelner, is helping to serve food and drink at the club. Charlie meets Eve Cairo and socialite Bessie Sibley, as well as Rhadinis jealous wife, Myra. During her telepathy act with Fred Rhadini, Eve comes into contact with someone thinking about murder and Charlie is almost killed when a knife is thrown at him.After the show, Charlie, followed by Rhadini and Lewis, break into Dr. Zodiacs home. They find Jimmy already there. Charlie discovers evidence that Zodiac is a fraud. When Zodiacs Turkish houseman, Abdul, arrives, Charlie searches him and finds the holster that fits the knife. Abdul escapes, and the burglars discover Zodiacs vast files which he uses to frighten and blackmail others. Charlie realizes Bessie Sibley is providing information on others to protect herself, and that Zodiac was blackmailing Essex. Charlie burns Zodiacs office to protect the innocent. ........

Source: Wikipedia