Inspector Japp has tracked down the taxi driver who drove two very unlikely passengers to Regent Gate on the night of Lord Edgware's murder...
Agatha Christie's whodunit stars John Moffatt as Hercule Poirot, Simon Williams as Captain Hastings, Norman Jones as Inspector Japp and Charles Millham as Ronald Marsh.
From the book first published in 1933 and dramatised by Michael Bakewell.
Director: Enyd Williams
First broadcast on BBC Radio 4 in 1992.