Barrie Kosky gives the “operetta of all operettas” a new look and devotes himself to its morbid side. The setting is Vienna, city of the golden operetta era, where Die Fledermaus premiered at the Theater an der Wien in 1874. The bat's revenge becomes a nightmare, and not just for Gabriel von Eisenstein. A society, an entire city dances towards the abyss. To take revenge on his friend Eisenstein, Dr. Falke, alias Die Fledermaus, stages a game of mistaken identity at Count Orlofsky's house. A marquis and a chevalier, a countess and budding artists meet there for a raucous party. Glasses clink, relationships are shaken, people love, lie and dance. The party lasts as long as it lasts, true to the motto: “Happy is he who forgets...”.