An alchemist, about to be burned at the stake, tells his captors that some day the teachings of the alchemists will be generally believed. The alchemist taught that the human character goes through a process of evolution and in the effort to conquer conditions about him, man finds his birth of character. Harry is in love with Grace. She is the good influence in his life. His companions influence him in the other direction. Large losses at cards make him desperate so that at a dance he is momentarily tempted to steal a diamond-studded hair ornament. The impulse immediately and he returns it, explaining that it dropped to the floor and he picked it up. Unfortunately a witness to both the impulse and the quick wit in pulling himself out of the dilemma was Darby, a master criminal. Later Harry is dragged to a gambling joint by his friends; the place is raided through Harry's bitter rival, Arthur Vane, from whom he rescues Alice, a girl who assists her father in the management of the place. All the boys are arrested except Harry, whom Alice saves by means of a secret door. He thus meets her father, who proves to be Darby. This leads Harry to his becoming the tool of Darby, and he is on the downward path. Harry and Grace become engaged. She does not know the life into which he is drifting. A dealer in objects shows them a valuable necklace. This latter is procured by Harry in a successful burglary. He is then sent to a fashionable house party by Darby to see what loot may be obtained there. Grace is a visitor at the same house party, and it is she who shoots him, not knowing his identity. Discovering who it is she saves him; the wound if only a scratch, but with scorn tells him she never wants to see him again. Harry then determines to make a man of himself, surrenders, and is imprisoned to pay the penalty of his crime. As an ex-convict he is welcomed only in the underworld. Alice, because she has fallen in love with him, unselfishly determines to help him, goes to Grace, pleads with her to overlook the past and give Harry a chance. Grace finally agrees to do so, and Alice sends Harry to her. He obtains a position and is rapidly demonstrating a real character. Refusing to have anything further to do with crooked work, he is threatened and only saved from trouble by the unselfish Alice. However, he repays this sacrifice with an open and cruel snub when with Grace he meets her on the street. Her love turns to hate. The master willingly lures him to his den, Alice maneuvers to lure Grace to the underworld, also so that she may be a witness to the punishment of her ungrateful lover. The situation works up to the dramatic climax where Darby is about to kill Harry when the police, summoned by Grace through a ruse, break in and she and Harry are saved.