He telephones the home of Sir Carmichael Clarke to warn him, only to learn, he has already been murdered. It states that the next murder will be in the town of Churston. Poirot is given another letter from A.B.C. He believes that Poirot lied about his credentials and therefore cannot be trusted. A new letter arrives, stating that the next location and victim will begin with the letter C, but Crome still refuses Poirot's help. Unbeknownst to Poirot and the police, a down-on-his-luck travelling stocking salesman named Alexander Bonaparte Cust encountered both victims prior to their deaths. However, he refuses all offers of help from Poirot and confiscates his papers, believing that Poirot knows the killer. When Alice Asher is found murdered, and she is quickly followed by Betty Barnard, in Bexhill, Crome takes the letters more seriously. Poirot seeks out Japp, but he suddenly dies in his presence. Poirot gives this information to the police, but Inspector Crome, who has replaced the retired Inspector Japp, dismisses the letters' contents as an April Fools Day prank. According to the letters, the first killing is slated to occur in Andover on 31 March. Poirot has been receiving letters signed A.B.C., taunting him and predicting murders. The De La Warr Pavilion at Bexhill-on-Sea in East Sussex is also featured. Newby Hall in North Yorkshire is the mansion at Churston.

Various cities, towns and villages in the historic county of Yorkshire in the north of England-including Grosmont, Leeds, Pickering, Ripon, Saltaire, Skelton-on-Ure and Wakefield-played key roles as settings for this adaptation. Christopher Villiers as Sir Carmichael Clarke.Tara Fitzgerald as Lady Hermione Clarke.Eamon Farren as Alexander Bonaparte Cust.The series was released on DVD through Universal Pictures UK on 11 March 2019. It stars John Malkovich as Hercule Poirot, with Rupert Grint, Andrew Buchan, Tara Fitzgerald and Shirley Henderson in supporting roles. It was adapted by Sarah Phelps and directed by Alex Gabassi.

It was broadcast over three consecutive nights beginning on 26 December 2018. The ABC Murders is a 2018 BBC One mystery thriller television serial loosely based on Agatha Christie's 1936 novel of the same name.

The abc murders 2018