At an apparently respectable dinner party a vicar is the first to die Thirteen guests arrived at dinner at the actor's house It was to be a particularly unlucky evening for the mild-mannered Reverend Stephen Babbington who choked on his cocktail went into convulsions & died But when his martini glass was sent for chemical analysis there was no trace of poison
- just as Poirot had predicted Even more troubling for the great detective there was absolutely no motive