"On a hot summer day in 1938, a beautiful actress is murdered on the grand Kent estate of Sir Jack Jessup, close friend of the Prince of Wales. The arrest of an ex-convict and his subsequent confession swiftly bring the case to a close, but in 1949, the reappearance of a jade necklace raises questions about the murder. Was the man convicted and executed the decade before truly guilty? Though happily retired from the police force, John Madden is persuaded...