Ruth Burns is not aware that her father is a professional gambler until she receives a notification of his death and comes to New York. She inherits his gambling palace, and Jimmy Weaver, one of his associates, instructs her in its operation. Informed of her father's debt to John Collins, she gambles to pay off the debt until one of her victims tries to commit suicide and she realizes the wrong she is doing. In a final game she loses her winnings, and Collins not only is unmasked by Jimmy as a cheater but is killed by a woman he deserted. Ruth discovers the debt to have been pure invention and decides to marry Jimmy.