This year, Théâtre Sainte-Catherine is partying on stage for the 21st Nuit blanche! A milestone worth celebrating! Not only will we change improvisers, themes and styles every hour on the hour, we will also switch languages (that's right!) throughout the entire evening to offer you an event that is 100% bilingual... Montreal-style! Come and join us to have fun with our crazy scenes and the best improvisers in the city!