The Murder of Roger Ackroyd

In the quiet village of King's Abbot, a wealthy industrialist is found stabbed to death in his locked study shortly after the suicide of a widow he intended to marry. Retired detective Hercule Poirot is called out of his gardening retirement to investigate a web of blackmail, hidden motives, and village gossip. The novel is widely regarded as a masterpiece of detective fiction due to its innovative narrative structure and famous plot twist.