As described in a film magazine,[3] Cassy Cara (Frederick), daughter of a Portuguese violinist whose talent has been obscured by a stroke following a holdup, attracts the attention of Monty Paliser (Gamble), a man of wealth who, failing to win her by any other means, marries her. Three days after the wedding she learns that the ceremony was not genuine and returns home, telling her father her story. That night Paliser is murdered while in his box at the opera. A young man who Cassy has loved, who was seated in the next box, is accused of the murder and a chain of evidence is built up around him. To shield him, Cassy confesses to the crime. Then her father tells the truth that he is guilty. The film ends with the death of the father and the reuniting of Cassy and her young man.
