By popular demand, Mercury Theater Chicagos critically acclaimed production of Monty Pythons SPAMALOT will be extended into the fall and winter, with performances now running through December 29.SPAMALOT is an irreverent musical of the legend of King Arthurs quest for the Holy Grail. Spurred on by a plague with a 50% chance of pestilence and famine, Arthur recruits knights to accompany him on his quest in pursuit of the salvation of Camelot, and their own destinies. Along the way they encounter crazy shenanigans including the Lady of the Lake and her Laker Girls, flatulent Frenchmen with flying cows and blood thirsty, killer rabbits.