Tod, the hero, is in Year 11 of school. He is an angry boy with relationship issues with his father who has left home to set up with That Little Tart From The Office and with his mother who is nine months pregnant. He deals with his anger by behaving badly and shouting.
As if that wasn't enough for any teenage boy, his head becomes invaded by the undead spirit of a wannabee Rock Star (Ed). Ed grows into Tod's brain, even trying to take it over and being quite frankly no help at all. During the story Tod meets his bossy girlfriend and delivers a very smelly younger baby sister together with gaining insights into why adults are so useless. It is a funny book about the disadvantages of having anyone else share your head.