Young lord of Whitehall Manor, Sir Anthony Elliott, becomes secretly engaged to Elinore Vane, but she marries his brother Paul. Resentful Anthony, decides to go to America, Nina Desmond, whom he earlier rescued from a fall, asks to go with him, but he refuses. Nina overhears him also refuse Elinore, whom Paul mistreats. After Nina sees Elinore stab herself, she threatens to accuse Anthony of murder unless he takes her, but still he refuses. The morning after Anthony is sentenced to hang, he is found dead in his cell. Five years later, Paul, living with Nina in Monte Carlo, hopes to get money from the manor's new tenants, Mrs. Edgerton, a wealthy American, and her daughter Dolores. After Dolores sees a mysterious gondola, she discovers Anthony living in a secret room. He explains that while in jail his mother gave him a potion which made him appear dead. After Dolores tricks Nina into writing a confession, Anthony professes his love for Dolores.