Being a monster isn't as easy as it looks! Gormy's parents are going away for the evening and that can only mean one thing — a monster-sitter! Oh no! But when Nana the Noog arrives, she's like no monster-sitter Gormy's had before. And when the sun goes down, he'll find out just how different she is! He's going to have to use every monster skill he has to survive until morning.