Jane Wallace, nicknamed "The Iceberg," discovers that a "straight" life is uneventful. Two girls in the chorus, Trixie and Pinkie, tell Dan Conby, an idler and cynic, about her. He laughs and gets an introduction, but fails to lead her astray. "What reward is there?" he demands, and she answers, "The respect of others." To show how deep this goes he introduces her to his friends who scorn her because of her shabby clothes. That night she loses her job for being late, though Trixie and Pinkie escapes unscathed as their friends back the show. Dan has just written Jane a letter asking her to marry him when she herself appears, saying she is disgusted with being good. He promptly shows her what the life leads to by taking her round the town, but she persists in her determination to fall from grace. He gives her the key to his apartment telling her to wait there for him. As she is unlocking the door a doctor comes from another apartment and asks her help. She assists at bringing a baby into the world and this event so affects her and Dan, when she sees him later, that they resolve to tread the straight and narrow path together.