Cameron Spark is separated from his wife, and awaiting a tribunal following an incident in the underground vaults of Edinburgh, where he works as a ghost tour guide. On the day he moves back home to live with his widowed dad, he receives a letter from Canada. It is from Christie... Twenty-five years earlier, Cameron attended Lancaster University and, despite his crippling shyness, made three unlikely friends: Christie, a rich Canadian; Tommo, a wannabe rock star; and Bex, a feminist activist. Cameron felt as though he was finally living - until a horrific car accident shattered their friendships and altered their futures forever... Now Christie's letter offers them a reunion after all these years. But has enough time passed to recover from the lies, the guilt, and the mistakes made on that tragic night?