Mamie, a girl of the underworld, whose only education has been that of crime, becomes a daring house-breaker and succeeds in looting many of the apartment houses and private residences in the suburbs. Completely nonplussed, the police are obliged to call in special detective service, and a noted sleuth is assigned to the ease. Detective White frequents the haunts of the girl, finally meeting and ingratiating himself in the role of a lover. Disguised as one of the habitués of the dive, he tries for some time to secure damaging evidence, but is unsuccessful. In his attentions to Mamie he arouses the Jealousy of big "Bill," a notorious crook, whose suspicions are aroused as to the detective's true calling. Through persistent shadowing, he finds his suspicions correct and just as the detective had planned to make a clean haul, denounces him before the gang and in the hearing of the girl. Although thoroughly disillusioned, the girl cannot forget the one good influence that entered her life...
Moving Picture World synopsis