- HD 1080
- Runtime: 60m.
- Status: Ended
- 0
- Languages: en
- Country: United Kingdom, United States of America
- Stars: John Malkovich, Rupert Grint, Eamon Farren, Andrew Buchan, Bronwyn James
- keywords: based on novel or book, belgium, world war i, serial killer, mysterious letter, 1930s
- Production_studio: Mammoth Screen, Agatha Christie Limited
- Slogan: There is a code. The code is me.
- Seasons: 1
- Episodes: 3
- First air date: 2018-12-26
- Last air date: 2018-12-28
- providers: Britbox Apple TV Channel, BritBox, BritBox Amazon Channel
- The The ABC Murders is featured in the top rankings of 2018
- #43 in Top Mystery Series of 2018
1933. Hercule Poirot, older and greyer, receives letters threatening murder. The sender signs themselves only as “A.B.C.” When he takes the letters to the police looking for help, Hercule finds all his old friends have moved on. But soon there is a murder and the once-great detective must take matters into his own hands.