AllMovie

Jack Mulhall stars as Leonard Staunton, a businessman whose future is threatened by a trio of mysterious blackmailers. The villains will stop at nothing to get what they want -- not even murder. From all appearances, the blackmailers are members of a Chinese Tong, but Staunton, teamed with dedicated detective Lt. Caundon (Noah Beery), proves that the dastardly trio are all Caucasians. The film comes to an exciting climax as Staunton, Caundon and heroine Jeanne Baldwin (Lila Lee) rescue the hero's Aunt Pat (Hedda Hopper) from the bad guys' clutches. Like many early Warner Bros. talkies, Murder Will Out was remade more than once by Bryan Foy's "B" unit.