Robby and his sister Karla beg their parents to take them to a big carnival that has opened on the other side of town. The two kids are delighted by the rides, the sideshow, the interesting displays, and the great food booths. But soon they wander away from their parents and find themselves at a less-trafficked area at the back of the carnival. Inside a large penned-in area sits a dejected-looking boy about their age. A sign on the tall metal fence reads: PLEASE DO NOT FEED THE WEIRDO.The kids are reluctant to disobey the sign, but the boy seems really nice…and hungry. Karla hands him her cone through the fence, and he thanks her politely. Then he eats the ice cream—and transforms into a raging, hairy beast!