Agatha Christie's Poirot (1989)

S11E4 Appointment with Death

While vacationing in Jerusalem, Poirot learns of an archaeological dig in Syria led by the quirky Lord Boynton and his son Leonard, who are convinced they have found the relic of St. John the Baptist. Intrigued, Poirot decides to visit the site and encounters the formidable, wealthy American second wife of Lord Boynton. However, the situation takes a dark turn when Lady Boynton's lifeless body is discovered, unveiling shocking truths about her wealth and the dynamics of the Boynton family.