At an apparently respectable dinner party a vicar is the first to die...Thirteen guests arrived at dinner at the actors house. It was to be a particularly unlucky evening for the mild-mannered Reverend Stephen Babbington who choked on his cocktail went into convulsions and 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...