EP 1AvailableNow playingEpisode 1
It's 1933, and an older and greyer Hercule Poirot receives letters threatening murder. When no-one listens to his appeals, the once great detective must take matters into his own hands.


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.
EP 1AvailableNow playingIt's 1933, and an older and greyer Hercule Poirot receives letters threatening murder. When no-one listens to his appeals, the once great detective must take matters into his own hands.
EP 2AvailableThe ABC killer sends more letters promising to spill blood. Hercule's past, integrity and identity come into question while he fights a rising tide of xenophobia.
EP 3AvailableWith the ABC killer still on the loose, Hercule realises that only he holds the key to the murders. He faces a race against time to stop the bloodbath.

Hercule Poirot

Inspector Crome

Cust

Franklin Clarke

Megan Barnard

Lady Hermoine Clarke

Lily Marbury

Thora Grey

Beautiful Young Man

Betty Barnard

Capstick

Donald Fraser