The book investigates the enduring mystery of Jack the Ripper, proposing a radical theory of a high-level governmental cover-up. Stephen Knight, a recognized authority on the Ripper case, presents evidence suggesting the murders were not random acts of violence but part of a meticulously planned conspiracy. This theory posits that the killings were orchestrated to conceal a significant event, with involvement reaching into the highest echelons of British society, including the monarchy. The narrative explores the intricate web of deceit and the powerful forces that may have sought to bury the truth.

Stephen Knight's work on Jack the Ripper is known for its provocative and controversial thesis, suggesting a conspiracy reaching the highest levels of government and royalty. The book challenges conventional understanding of the case, presenting a detailed argument for a cover-up. While the theory is compelling to some, it has also faced scrutiny and debate within historical and true crime communities regarding the interpretation of evidence. The book's strength lies in its detailed research and its bold reinterpretation of the Ripper events.