On a flight from Le Bourget to Croydon, on which the Belgian sleuth Hercule Poirot is an apprehensive passenger, a woman is found dead. A doctor on board is inclined to put it down to a wasp-sting, but Poirot suspects it's a case of murder...
- John Moffatt as Hercule Poirot
- Philip Jackson as Chief Inspector Japp
- Geoffrey Whitehead as Monsieur Fournier
- Murray Melvin as Daniel Clancy
- Teresa Gallagher as Jane Grey
- Carolyn Jones as Lady Horbury
- Ben Crowe as Norman Gale
- Andrew Harrison as Jean Dupont
- Bruce Purchase as Dr Bryant
- Liza Sadovy as Elise Grandier
- Priyanga Elan as Anne Richards
- Stephen Critchlow as Airline Steward
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