Radio review - BBC radio play - "The Dumb Witness" by Agatha Christie (2006)

Not one of the most famous Poirot stories, for me this took a while to get going but once it did I enjoyed it and couldn't pick the killer. The opening gimmick is Poirot gets a letter requesting help from a lady who soon after dies; there's also a need twist as to the ID of the one who dunnit. The characters are greedy upper middle class types after the will; Poirot is helped by his buddy Major Hastings.