: While Alexander Bonaparte Cust is initially suspected, Poirot ultimately exposes Franklin Clarke as the true mastermind behind the murders.
Originally broadcast on January 5, 1992, the feature-length episode follows Poirot as he tracks a serial killer who taunts him with letters and selects victims in alphabetical order. Key Feature Details [S4E1] The ABC Murders
: Hercule Poirot, joined by his usual companions, Captain Hastings, Chief Inspector Japp, and Miss Lemon. : While Alexander Bonaparte Cust is initially suspected,
The first episode of Series 4 of , titled " The ABC Murders ", features David Suchet as the iconic detective Hercule Poirot. joined by his usual companions