Katherine, a musical comedy star, is harassed by Billie Vandergift, a wealthy man. She spurns his false love, and while not engaged in her work, spends her time as a charity worker. While on a visit to the slums she discovers a poor girl, Mary, who has been wronged by Vandergift. She also meets Richard Carter, a millionaire charity worker, who is on one of his annual tours of inspection. He falls in love with her not knowing, however, that she is a musical comedy star. Mary's brother resolves to avenge his sister's deception. Several nights later Vandergift is entertaining at an after-theater party to Katherine and her friends. Richard Carter is also present, and as Katherine and Carter recognize each other a shot is fired through the window and Vandergift falls dead. Katherine faints and Carter carries her to her apartment. When she is revived she relates a pathetic story of her many trials and tribulations in endeavoring to lead a respectable life, and Carter asks her for her hand. The following day they are quietly and happily married