As with any film featuring the outrageously operatic antics of early horror star Tod Slaughter, this slow, stagebound murder-mystery would be completely unwatchable without the producer-star's presence. A third adaptation of the stage play by F. Brooke Warren, this film stars Slaughter as Chevalier Lucio del Gardo, a respected Parisian aristocrat responsible for the ghastly crimes previously attributed to a notorious killer known only as "The Wolf." Del Gardo has concocted a devious plan with his deranged, brutish brother to pull off a rash of bank robberies, using The Wolf's murderous ways to throw police off their trail. Their plans are foiled in the end, though del Gardo apparently escapes the clutches of the law. One of Slaughter's better efforts, made bearable by a brief running time.