To find material for his book on the psychology of women's minds, the writer deliberately makes his wife jealous by seeming to have relations with an actress, whom in reality he never sees, so that he may study the effect of the emotion. On the discovery that her husband has tortured her for his science, the young wife leaves, but is injured by an automobile and taken to a hospital. At the same time, the actress kills the artist friend of the writer, who has posed as the psychologist, and the finding of the scientist's card outside the actress' window, leads the detectives to believe that the murder was committed by him. The final confession of the actress of her crime, after she had been fatally shot by her pistol which she hid in the hopes of covering her guilt, frees the psychologist from the law, and the forgiveness of his cruelty by his wife on her sick bed restores them to their former state of happiness.