On the short flight from Le Bourget to Croydon the woman in seat number two dies from a wasp sting. Hercule Poirot is also on the flight and he is not convinced that a wasp sting did cause the death. Poirot has a large cast of characters to choose from in this ‘locked-room’ mystery and working with Scotland Yard and the Sûreté he sets out to discover the truth in his very methodical way.