Abstract
A millionaire strikes a deal on the seedier side of Paris and a priceless cache of rubies becomes destined for his beloved daughter Rachel. Two days later Rachel is dead - murdered on a train on her way to the Riviera to meet her scoundrel lover: a mysterious, dark man. The suspects line up ... only master slueth Hercule Poirot can unravel the mystery and find the truth. Maurice Denhham stars as the great Belgian detective in this BBC Radio 4 full-cast dramatisation.