Glory Quayle, a natural-born mimic, leaves her country home, reaches London, goes on the stage, gains fame and affluence. John Storm, her country sweetheart, believing he has lost Glory forever, enters a monastery, tries to forget her, cannot kill his love, returns to the world, becomes a famous slum worker and friend of the poor. Lord Robert Ure, a social vampire, a beast in human form, betrays Glory's chum, Polly Love. Glory tells John of Lord Robert's wicked treatment of poor Polly. John demands that Lord Robert marry Polly to save her from dishonor. Lord Robert refuses, as he intends to marry a rich American heiress. Terrific clash between the Right of John and the Might of Lord Robert. John exposes Lord Robert, who swears revenge. Polly dies of shame and a broken heart. Lord Robert plans fiendish revenge on John. He spreads broadcast the report that John predicts the end of the world on Derby Day, the greatest day of sport in England. John becomes an object of hatred.