Dr. Warren, engaged to Marjory, gives the girl her freedom when his negligence brings about his dismissal from the hospital staff. Warren disappears. Despairing of ever hearing from him, Marjorie weds Priestman, an elderly scientist who has been blinded as the result of an accident. Years later Warren and Marjory meet. Warren has won prominence as a bacteriologist. The old love springs up anew. Priestman senses what has occurred. Although at first filled with a desire for revenge, his love for Marjorie is so great that he resolves to make it possible for her to wed the man who has long had her heart. A burglar enters the house. Priestman, contemplating suicide, rejects the idea, knowing it would ruin Marjory's life. The husband learns of the burglar's presence. He follows the thief, who, perceiving Priestman to be blind, will not shoot. Priestman finally corners the burglar and deliberately fires his revolver in the air. Startled, the burglar shoots in what he thinks is self defense. The bullet instantly kills the husband. Warren and Marjory rush into the house. The wife's suspicion that Priestman committed suicide vanishes when the police enter with his slayer. Neither she nor Warren ever knows of the husband's deliberate sacrifice.