A widow's sudden suicide sparks rumors that she murdered her first husband, was being blackmailed, and was carrying on a secrey affair with the wealthy Roger Ackroyd. The following evening, Ackroyd is murdered in his locked study, but not before receiving a letter identifying the widow's blackmailer. Kings Abbot is crawling with suspects and it's up to famous detective, Hercule Poirot, to solve the case.

Originally published: New York : Dodd, Mead & Company, c1926.

Dr. Sheppard at the breakfast table -- Who's who in King's Abbot -- The man who grew vegetable marrows -- Dinner at Fernly -- Murder -- The Tunisian dagger -- I learn my neighbor's profession -- Inspector Raglan is confident -- The goldfish pond -- The parlormaid -- Poirot pays a call -- Round the table -- The goose quill -- Mrs. Ackroyd -- Goeffrey Raymond -- An evening at Mah Jong -- Parker -- Charles Kent -- Flora Ackroyd -- Miss Russell -- The paragraph in the paper -- Ursula's story -- Poirot's little reunion -- Ralph Paton's story -- The whole truth -- And nothing but the truth.