Marion Livingston, daughter of General Livingston, boss of the Elsinore coal mines, rescues Jack Stanton, a young superintendent of the mines, from a mob of miners led by Jim Saunders, who were enraged at his having ordered them to work after it had been found that the mine is dangerous. Jack's brother, Harold, a young district attorney, comes to visit him and falls in love with Marion. They are married, come to New York and Marion is introduced into society, with which she is bored. The only one who appreciates her is Oliver Whitney, a friend of Howard. As time passes, Howard and Marion drift apart. Howard is infatuated with Nina Blakemore, a fascinating woman of the world, who, unknown to him, has broken his brother Jack's heart casting him aside to marry Marney, who she believed to be wealthy, only to discover prior to their wedding that he, at the end of his resources, was marrying her under the impression that she was a wealthy widow. Nina and Howard are in an auto accident, but both escape injury. The next day the papers come out with the news of a pending divorce between the Stantons, hinting at a mysterious unknown woman. Marion, madly in love with her husband, determines, if any woman is clever enough to take him from her, to meet her on her own grounds. She gives a dinner party two days later and invites Nina as her honored guest. Jack arrives with his wife, Myra. Marion completely outshines Nina at the dinner. Nina comes face to face with Marney at the dinner, Jack Whitney, an old flame of hers, and Howard's brother-in-law, Morris, who carried on an affair with her previous to his marriage to Howard's sister, Belle. Confronted with her past amours, Nina finds the situation very difficult. Howard learns of their past relations with Nina and the indignant men believe he has invited her there to put a hoax on them. The reporters break into the house and threaten to publish the news that Nina Blakemore was the woman in the automobile accident, but Marion saves the situation by feigning an affectionate friendship between Nina and herself and this sends the reporters away satisfied. After Howard has asked Whitney to see Nina home, there is a reconciliation between Marion and Howard, when he asks her to forgive him.