Martin Jarvis reads this compelling tale set amidst the roulette tables of Monte Carlo, starring Agatha Christie's personal favourite character, Harley Quin. Holidaying in the South of France, Mr Satterthwaite encounters a beautiful Russian Countess with a mysterious past. But with the sudden arrival of Mr Quin, secrets are about to be revealed. Can they solve a conundrum concerning her and a brash young American? Producer/Director : Rosalind Ayres A Jarvis & Ayres Production for BBC Radio 4.