Vampires and werewolves and zombies—oh my! It's a monster invasion, and the stinky-smelling creatures are destroying Wally's peaceful little town. They scare the kids, knock over the lampposts, and make a mess of everything. And no one can stop them—until, fed up, Wally says . . . the magic word, "PLEASE." Learning good manners has never been as monstrously fun!