Marie and Armand, dancers in a Paris nightclub, set out to rob the home of Pierre Marcel, a wealthy scientist, taking The Knifer along with them. Marcel walks in on them unexpectedly, and Armand is wounded, with the result that The Knifer is restrained from killing the scientist. The grateful Marcel nurses Armand back to health and introduces him to the beautiful Jean. Marie becomes jealous and lures Marcel into marriage, immediately afterward telling him of her cruel deception. Armand returns from abroad, and Marie flies into his arms. Marie's apache friends, who helped her deceive Marcel, attempt to kill Armand and instead accidentally shoot her. Armand nurses her back to health, and Marcel leaves to get a divorce that will free Marie to find happiness with Armand.
