London, 1932. Thomas James Wise is the toast of the literary establishment. A prominent collector and businessman, he is renowned on both sides of the Atlantic for unearthing the most stunning first editions and bringing them to market. Pompous and fearsome, with friends in high places, he is one of the most powerful men in the field of rare books. One night, two young booksellers – one a dishevelled former communist, the other a martini-swilling fan of detective stories – stumble upon a strange discrepancy. It will lead them to suspect Wise and his books are not all they seem. Inspired by the vogue for Hercule Poirot and Sherlock Holmes, the pair harness the latest developments in forensic analysis to crack the case, but find its extent is greater than they ever could have imagined. By the time they are done, their investigation will have rocked the book world to its core.