"Ramsay MacDonald is elected in 1929 to make a 'land fit for heroes', but is immediately subject to blackmail from a Viennese prostitute. MI5 and MI6 both set out to secure the evidence ... but do they want to save their Prime Minister, or destroy him? The Prime Minister's Affair is another brilliant historical thriller from the author of Witchfinder, based on a real blackmail plot, hidden in the archives."--Publisher.