Troubled and troubling 12-year-old Morton Plum suffers from a deadly condition. His Mum constantly reminds him if he laughs hard or gets too angry he could die. But now Neville Savage is back and keeping calm is going to be impossible.Returning to Blackthorn, bullying, abusive Neville Savage once again makes Morton and his friends' lives a nightmare. When he brutally beats up the estate's only black boy, Morton and his best friend Wesley decide Neville Savage must be stopped. Meanwhile, Morton's Dad has his eye on the babysitter, and Morton's Mum is losing her mind. As his frustrations mount, Morton struggles to tame his rage and tumbles ever-closer to the edge of death. Then the boy who betrayed Morton and Wesley is found drowned, and the answer to the question: Who killed Luke Little? is going to spell the end of the road for someone.
