After the Funeral (BBC Audio Crime)

Blurb

After the Funeral is a work of detective fiction by Agatha Christie and first published in the US by Dodd, Mead and Company in March 1953 under the title of Funerals are Fatal and in UK by the Collins Crime Club on 18 May of the same year under Christie's original title. The US edition retailed at $2.50 and the UK edition at ten shillings and sixpence.
A 1963 UK paperback issued by Fontana Books changed the title to Murder at the Gallop to tie in with the film version. The book features the author's Belgian detective Hercule Poirot, but the Murder at the Gallop film adaptation instead featured her amateur sleuth, Miss Marple.
A wealthy man dies at home. The day after his funeral, when his relatives gathered afterward to hear his will read, his sister is found murdered. She had said her brother was murdered. Poirot is called in to solve the mystery.