Honesty – The Best Policy (1926)

An author's wife threatens to send him out to work unless he sells a story. Finding a publisher who will accept only true stories, the author proceeds to unravel his own past: As a notorious criminal, with his wife as accomplice, he commits robberies, is pursued and captured, escapes, and eventually reforms. Excited by the story, the publisher prepares to buy it. Overcome by his success, the author announces that his wife had been a much "dirtier crook" than himself, and he is about to reveal the details of her life when she overhears him and spoils the scene.