Agatha Christie no Meitantei Poirot to Marple episode 5

It aired on Sunday, 8 August 2004.

ABC Murders, Part 1, Challenge to Poirot

There’s a serial killer on the loose, working his way through the alphabet, and the whole country is in a state of panic. A is for Mrs Ascher in Andover, B is for Betty Barnard in Bexhill, C is for Sir Carmichael Clarke in Churston. With each murder, the killer is getting more confident, but leaving a trail of deliberate clues to taunt the proud Hercule Poirot might just prove to be the first, and fatal mistake.