2022 Reprint of the 1926 Edition. A murder in a small English village leads Hercule Poirot into a strange mystery involving a determined, curious spinster, the local doctor, and a wide range of suspects with possible motives and mysterious relationships. Poirot retires to a village near the home of a friend, Roger Ackroyd, to pursue a project to perfect vegetable marrows. Soon after, Ackroyd is murdered, and Poirot must come out of retirement to solve the case.

The novel was well-received from its first publication in 1926. In 2013, the British Crime Writers' Association voted it the best crime novel ever. It is one of Christie's best-known book, its innovative ending having a significant impact on the genre. Howard Haycraft included it in his list of the most influential crime novels ever written.