The King of Clubs

Prince Paul of Maurania is engaged to marry a beautiful young English actress called Valerie St Clair. And then Valerie becomes the only witness to the murder of Henry Reedburn, a shady and overbearing film producer, at his house, and the police at once suspect her of being the killer. Prince Paul appeals to Poirot to save his intended from a possible murder charge, but in investigating the killing the great detective comes to the conclusion that Valerie has lied and is at least an accomplice. At the end, he finds he has a conundrum to ponder on - When is a murder not a murder?