S05 E06. The Chocolate Box.

First broadcast 21st February 1993.

While in Belgium, Poirot recounts to Chief Inspector Japp a case from twenty years prior.

David Suchet as Hercule Poirot
Philip Jackson as Chief Inspector Japp
Rosalie Crutchley as Madame Déroulard
Anna Chancellor as Virginie Mesnard
David de Keyser as Gaston Beaujeu
Jonathan Hackett as Claude Chantalier
Geoffrey Whitehead as Xavier, Comte de St. Alard
Mark Eden as Superintendent Boucher
Jonathan Barlow as Jean-Louis Ferraud
James Coombes as Paul Déroulard
Preston Lockwood as Francois
Linda Broughton as Denise
Kirsten Clark as Jeannette
Michael Beint as Coroner
Lucy Cohu as Marianne Deroulard
Richard Derrington as Henri
Jill Goldston as Restaurant Patron
Reg Thomason as Wine Drinker