sentences:  The musical is set in a corrupt world inhabited by rakish mobsters and their double crossing gangs, raffish madams and their dissolute whores, panhandlers and street people as they conduct their dirty business, ply their trade, and struggle to survive in brothels, shanty towns, and prisons.The plot focuses on the exploits of MacHeath, a suave New York mobster, his three women, and their various trials and tribulations with the law.