Inspector Hercule Poirot, having retired to the small English village of King's Abbot, is drawn into the investigation of the murders of the widow Mrs. Ferrars and her suitor, local squire Roger Ackroyd.
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.