Irving, a wealthy young artist, goes blind, a happening that puts off his engagement to Ethel. Crushed, Irving leaves her and seeks another city. Meantime we are introduced to Daisy Dean and her brother. Daisy has been betrayed by a young rounder, Hurst, who refuses to marry her. Daisy's brother, learning of it, asks for his name, threatening to kill him. Daisy leaves her brother to bury herself in another city. The brother later discovers a letter from Hurst which discloses his address. He starts out to visit him. Going back to Irving, we find him living alone; he is in the habit of walking every evening to the end of the road outside his house and back again. Some newsboys knock him one afternoon and when he recovers he has lost his location. Believing, however, that he is going in the right direction, he comes to a house and enters. In the room of death, with the murderer at hand, Irving realizes his mistake. Hurst, in a fight with the brother, has killed him. When Irving again finds himself on the street, he tells a policeman that a crime has been committed, but he is unable to say where. Irving is helped home. Next morning the body of a strange man is found in the woods. The police remember Irving's statement, but are unable to solve the mystery of the murder. Later, Hurst meets Irving and cultivates his friendship. Hurst becomes a constant visitor at Irving's house and they play chess together. Ethel has heard of her sweetheart's blindness and taking a house near him, visits him often. She engages a doctor and he says that Irving can be cured by an operation. This is performed, much to the distaste of Hurst. Irving is warned to keep the bandage on his eyes for so many days. The evening before Irving is to remove the bandage, Hurst calls, partially drunk. He insults Ethel. Irving, hearing her cries, throws off his bandage; he can see. There is a terrific fight, but before it is finished Irving goes into eternal darkness. Later, Daisy returns and finds that her brother is dead. She informs the doctor of her affair with Hurst and he is at once suspected. Irving is brought into the case again; the remainder of the play does with the bringing to justice of Hurst through a series of exciting incidents.