DESCRIPTION: (from BBC's press release, June 2018) Bafta nominated writer Sarah Phelps returns to explore the 20th Century through Christie's work. This time the setting is the 1930s, a time when the nation is dangerously divided and suspicion and hatred are on the rise. In the midst of this, Poirot faces a serial killer known only as A.B.C. First the killer strikes in Andover, then Bexhill. As the murder count rises, the only clue is the copy of The ABC Railway Guide at each crime scene. Poirot's investigations are thwarted at every turn by an enemy determined to outsmart him. If Poirot is to match his nemesis then everything about him will be called into question: his authority, his integrity, his past, his identity.