His House in Order (1920)

Nina Graham, left penniless by the death of her father, takes a job as governess to Derek Jesson, the son of Filmer Jesson, member of Parliament. Jesson's wife, Annabelle, is secretly in love with an army officer and is planning to leave the country with her lover. But she is killed in an automobile accident before any of this can be revealed. Nina stays as governess, and finds companionship in helping little Derek. Geraldine, who is Jesson's sister, looks upon Nina with disfavor. But Jesson, seeing Derek's fondness for Nina, asks her to marry him. The two go to Paris on a honeymoon. There, Nina meets Jesson's brother Hillary. When Nina asks her husband to take her to a fancy dress ball, he refuses, reminding her that Annabelle would never indulge in that kind of activity. But Hillary offers to take her, and she wears a striking costume which wins first prize. Jesson becomes enraged at this, and plans an immediate return to England. When the pair return home, Jesson becomes more and more critical of his wife. Nina then overhears him telling Hilary that he made a mistake in marrying her. Nina prepares to leave, but then some old love letters which show Annabelle's infidelity fall into Jesson's hands. He realizes he has made a mistake, and finally turns all his affection to Nina.