The Star Reporter (1921)

Determined to learn the cause of her father's confinement to a sanitarium, Nan Lambert gets involved in a series of hectic experiences, in which she frequently meets Anthony Trent, a daring young man who always helps her without revealing his purpose. Nan and Trent finally deliver to the district attorney evidence that Conington Warren (whose watch contains the combination to the safe containing the evidence) schemed with his associates to kidnap Nan's father and place him in the sanitarium. Trent reveals that he is a newspaper reporter, who has just been promoted to managing editor, and proposes to Nan.