When George Estey dies just after completing an important invention, his friend, John Miller, steals the plans and makes a fortune selling them. Then, stricken by a guilty conscience, he adopts Jane, George's orphaned child and the rightful owner of the invention. Years later, after having raised Jane as his own daughter, John dies. In his will, he discloses his theft of the plans and reveals Jane's true identity. He then leaves all of his money to Kent, his worthless son, provided that he marry his "sister." Jane, however, wants to marry Gordon, her other "brother," who is determined that Jane get all of the money from George's invention. Furious, Kent tries to murder both Jane and Gordon, but he fails, and the police quickly arrest him. Jane is then awarded the rights to George's invention, after which she and Gordon plan their life together.