Poirot investigates when a woman he met at the Chelsea Flower Show dies from poisoning.
A boy's life hangs in the balance when he falls down a well. A media circus descends and Peggy and David play host to a troublesome celebrity journalist.
Vernon's prospects look bleak when the tax-man comes to town.
Ken is hired to keep tabs on a man's wife, while Harry finds himself looking down the wrong end of a shotgun.
