When a couple of scammers hold young Alice Faulkner against her will to discover the whereabouts of letters whose dissemination could cause a scandal affecting the royal family, Sherlock Holmes decides to take over the case. (Considered lost, a copy was found in 2014, in the vaults of the Cinémathèque Française.)

Steel mill owner Sarah Maitland has raised her two children, Blair and Nannie, to be honest and caring, however Blair disappoints her when he seduces the wife of his best friend and breaks up her marriage. No one is happy but it takes a near fatal accident to set things right.