Murder is a very simple crimeAs easy as ABCThe whole country is in a state of panic.There is a killer on the loose, growing more confident with each successive execution – Alice Ascher in Andover, Betty Barnard in Bexhill, Sir Carmichael Clarke in Churston – laying a trail of deliberate clues to haunt the world’s greatest detective, Hercule Poirot.Which might just be the killer’s first mistake…