When artist Simon Dykes wakes after a late night of routine debauchery, he discovers that his world is irretrievably changed. His girlfriend, Sarah, has turned into a chimpanzee. And, to Simon's appalled surprise, so has the rest of humanity. Simon, under the bizarre delusion that he is 'human', is confined to an emergency psychiatric ward. There he becomes of considerable interest to eminent psychologist and chimp, Dr Zack Busner. For, with this fascinating case, Busner thinks he may finally make his reputation as a truly Great Ape. 'Prodigiously original and very funny...a novelist saturated with twentieth-century hip and eighteenth-century choler, Self works as a sort of wildly horrified Gothic satirist. It suits him very well.' Sam Leith, Observer 'Exultantly hallucinogenic...achieves the rare feat of temporarily altering the reader's perspective.' Steven Poole, Guardian