Revised as a Chicago gangland tale, this enjoyable Lyon Opera production of Jacques Offenbach's operetta -- originally set in the mountains of Italy -- follows a group of trench-coat-wearing, revolver-carrying mobsters who attempt to rob the Windy City's elite residents. Michel Trempont, Valérie Chevalier, Colette Alliot-Lugaz and Monique Barscha star in this delightful performance, which features beautiful staging and infectious melodies.