Champion of Lost Causes(1925)

Loring, an author, in getting material for a book, goes to a gambling den. He sees Wilbur, who acts strangely. He follows him and when Wilbur is killed, Peter Charles, father of Beatrice Charles, is accused of the murder. The gambler gives him a fictitious story about a murderous gang when Loring attempts to solve the murder mystery. Several attempts are made on his life by the gang but fail. The gambler proves to be Beatrice’s villainous fiancee, and when he confesses the murder Loring wins the young woman.