Respectable by Proxy (1920)

Rich Southerner John Stanley Hale meets flirtatious actress Elizabeth Roddard, she induces him to marry her, but after several days of quarreling, he flees to Russia. After John's vessel is sunk in mid-ocean and he is reported dead, Elizabeth convinces her destitute and ailing friend Betty Blair to pose as John's widow in order to inherit his fine home in Alabama. Betty complies and becomes indispensable to Mrs. Hale, who is despondent over her son's death and has become the victim of scheming relatives. One day, John returns, and discovering that Betty has protected his mother from his greedy relations, falls in love with her. Elizabeth then reveals that her marriage was never legal and that he is free to marry his "proxy wife."