On holiday in Jerusalem, Poirot hears about an archaeological expedition to Syria led by the eccentric Lord Boynton and his son Leonard, who believe they are on the track of the head of St John the Baptist. Drawn to visit the dig, Poirot meets Boynton's dominating, fabulously rich, American-born second wife. However, events are overtaken by the discovery of Lady Boynton's dead body and revelations about her fortune.
Quest roles:
Tim Curry(Lord Boynton), Christina Cole(Sarah), Tom Riley(Raymond Boynton), Elizabeth McGovern(Dame Celia Westholme), Cheryl Campbell(Lady Boynton), Zoe Boyle(Jinny Boynton), Emma Cunniffe(Carol Boynton), Angela Pleasence(Nanny), Paul Freeman(Col. Carbury), Beth Goddard(Sister Agnieszka), Christian McKay(Jefferson Cope), John Hannah(Dr. Gerard), Mark Gatiss(Leonard Boynton)