Paris, 1910. Panic sweeps the city as floodwaters rise and a monster is on the loose! Meanwhile a wacky inventor, his camera-crazy best friend, and a madcap monkey are on a mission to protect the beast, Franc, as he holds a rare and special talent. With the help of the beautiful but feisty singer Lucille, the team harbors the monster to keep him from the ghastly wannabe Mayor, Commissioner Maynott, who has a plan to capture Franc and reveal him to be nothing more than a monstrous danger to the people of Paris.