The Man Who Knew Too Much is a book of detective stories that contains eight connected short stories about "The Man Who Knew Too Much", and unconnected stories featuring other heroes/detectives.
Horne Fisher, "The Man Who Knew Too Much", is the main protagonist of the first eight stories. In the final story, "The Vengeance of the Statue", Fisher notes: "The Prime Minister is my father's friend. The Foreign Minister married my sister. The Chancellor of the Exchequer is my first cousi ...