Desperate because a wealthy man has reduced her father to thievery, Rhoda agrees to rob the poor box of the church, although she finds the act abhorrent. During the robbery, Rhoda's father is shot and dies in the priests's arms, seeking absolution, while the man who ruined him looks on. Penitent, the man appoints Rhoda as his representative to return the ill-gotten gains to those he has robbed. Rhoda enters the underworld as an angel of mercy, gaining the sobriquet of "The White Moll." After many thrilling escapades, she brings The Dangler, the leader of a gang of crooks, to justice, saves others from death and finally wins The Pug, the man of her choice.