H.B. Warner plays a philosophical detective who must investigate when a number of young girls are found dead or missing. All the girls happened to go to the Crescent School of Fine Arts, which upon investigation turns out to be a recruitment machine for prostitutes and nightclub dancers. The daughter of the man who owns the “school” goes under cover as a student in order to find out what’s really going on, and with the help of Warner, incriminates her own father, who claims to merely be a theater agent.