Dave's disgusting. He has a dog that farts, and he's way too interested in snot and sick for his Aunt Dora's liking. But really, he only wants to find out about fascinating things like the human body, and creepy crawlies, and ...flesh-eating maggots. When some real-live maggots arrive for Dave in the post, he discovers that science can turn dangerous! Can he keep the squirmy wormlets under control before they chomp their way through the whole neighbourhood?