Wallace Ford is in a police line-up. P. I. E. Alyn Warren identifies him as John Prescott, even though he isn't. We then see Prescott, also played by Ford, but with a mustache, as he, wife Lilian Miles, and her lover Leon Ames pull into a motel. Ford catches them at it, and the men get into a fight. Ford is killed. He can't be identified, and the motel keeper is vague on the details. Warren locates Ford (sans mustache) and explains that he's going to claim to be Prescott and claim the half million estate that would otherwise go to Prescott's widow, Laura Treadwell, and her daughter, Finis Barton. The ladies welcome Ford with open arms, which excites Ford's remorse. Then Ames and Miss Miles show up, expecting easy money.
It's a decent idea for a movie, barring the hoary identical-twin plot, but it isn't helped by the slow way in which director Spencer Gordon Bennett shoots things, with unnecessarily long takes and slow editing. Ford and Ames are good, except for the fight sequences, but the dialogue is slow, and we expect things will turn out well, with an appropriately high body count -- four in all.