The ABC Murders (2018) — Character Map & Story Timeline

AI Narrative Summary

A psychological thriller about Hercule Poirot's cat-and-mouse game with a serial killer who targets victims alphabetically.

Character Network — 11 Characters

• Hercule Poirot (John Malkovich) — protagonist Belgian detective known for meticulous methods and psychological insight.
• Inspector Crome (Rupert Grint) — protagonist British police inspector assisting Poirot with official investigations.
• Cust (Eamon Farren) Suspect and railway worker connected to the ABC murder series.
• Franklin Clarke (Andrew Buchan) Wealthy businessman and target of the ABC murderer scheme.
• Rose Marbury (Shirley Henderson) Victim in the ABC murder series representing the B location.
• Donald Fraser (Jack Farthing) Suspect and neighbor connected to the murder timeline.
• Megan Barnard (Bronwyn James) Young woman connected to the Clarke family and the murder case.
• Lady Hermoine Clarke (Tara Fitzgerald) Elegant relative connected to the Clarke family estate.
• Lily Marbury (Anya Chalotra) Relative of Rose Marbury involved in the ABC case.
• Thora Grey (Freya Mavor) Character connected to the ABC murder timeline.
• Betty Barnard (Eve Austin) Family member connected to the Barnard household.

Key Relationships

• Hercule Poirot → Inspector Crome (alliance)

  Collaborate on investigating the ABC murders

• Hercule Poirot → Franklin Clarke (narrative)

  Poirot investigates the disappearance of Clarke

• Hercule Poirot → Cust (conflict)

  Poirot suspects Cust of the murders

• Franklin Clarke → Lady Hermoine Clarke (family)

  Both belong to the same wealthy family line

• Franklin Clarke → Megan Barnard (family)

  Megan is connected to the Clarke household

• Cust → Donald Fraser (conflict)

  Both are suspects with conflicting alibis

• Rose Marbury → Lily Marbury (family)

  Share the Marbury surname and family ties

• Inspector Crome → Franklin Clarke (Professional Suspicion) — Crome is suspicious of Franklin Clarke

Story Structure — 4 Plot Phases

Alphabetical Terror

The ABC killer begins murdering victims in alphabetical order, leaving railway guides at each scene.

Psychological Warfare

The killer plays mind games with Poirot, planting false leads and challenging his methods.

Identity Crisis

Poirot questions his own abilities and past as the killer's personal vendetta becomes clear.

Final Revelation

Poirot uncovers the killer's identity and motive in a dramatic confrontation.