In 1933, retired detective Hercule Poirot is targeted by a taunting killer who sends letters signed "ABC", which Poirot must decode in order to discover the identity of the murderer.
Cast:John Malkovich , Eamon Farren , Michael Shaeffer , Rupert Grint , Conrad McCroddan , Freya Mavor , Shirley Henderson , Anya Chalotra , Andrew Buchan , Tara Fitzgerald , Bronwyn James , Christopher Villiers , Jack Farthing , Suzanne Packer , Eve Austin , Tamzin Griffin , Lizzy McInnerny , Terenia Edwards
In 1933, retired detective Hercule Poirot starts to receive threatening letters signed "ABC". When he informs Scotland Yard, they ignore his fears, and soon enough, a series of killings begins.
A third murder leads to sensational headlines and ridicule for Poirot and Crome, who discover the connection between the murders and try to use it to work out who will be the ABC killer's next victim.
In the wake of another murder, Poirot and Crome begin to narrow in on the killer.