The Law That Failed.

A prospector named Rodin is blackmailed for years by Estrella, who tricks him into believing he murdered her missing husband. After meeting Alice, Rodin traps Estrella in a secret room and disposes of her trunk, leading to charges of her murder. He's acquitted on a technicality when her body isn't found. Alice admits she believes he's guilty, and Rodin, releasing her, commits suicide in his library.