A chilling letter sets Belgian sleuth, Hercule Poirot on the trail of an enigmatic killer.
The arrival of an anonymous note warns Poirot to look out for Andover on the 21st of the month. Signed "Yours ABC", it sparks one Poirot's most disturbing cases.
As the body count starts stacking up - who is ABC?
Dramatist: Michael Bakewell
Director: Enyd Williams
First broadcast on BBC Radio 4 on 22 April 2000.