Hercule Poirot appears on
David Frost's talk show with actor Bryan Martin. The two are joined by Martin's costar Jane Wilkinson, who is later revealed to be a Wilkinson
impersonator named Carlotta Adams. Adams' impression of Wilkinson is so perfect it fools Martin himself. Martin, Poirot, and Poirot's assistant
Captain Arthur Hastings attend a dinner party, where the real Jane Wilkinson corners Poirot and asks for his help getting her a
divorce from her husband, Lord George Edgeware. Poirot agrees, only to discover that Lord Edgeware has already granted the divorce. The next day, Lord Edgware is found dead. His staff insist that Wilkinson must have killed him, since she had threatened to once before.
Inspector James Japp is ready to arrest Wilkinson for the crime, but she has an
alibi: she was at a dinner party with 12 other people. After Carlotta Adams is also murdered, Poirot investigates, much to Japp's annoyance. In the end, it is revealed that Jane Wilkinson did in fact murder Lord Edgeware, hiring Adams to attend the dinner party in her stead in order to give herself an alibi. She then killed Adams to ensure her silence. ==Cast==