The Murder of Roger Ackroyd (Hercule Poirot, #4)

Considered to be one of Agatha Christie's most controversial mysteries, The Murder of Roger Ackroyd breaks all the rules of traditional mystery writing.

The peaceful English village of King’s Abbot is stunned. First, the attractive widow Ferrars dies from an overdose of veronal. Not twenty-four hours later, Roger Ackroyd—the man she had planned to marry—is murdered. It is a baffling, complex case involving blackmail, suicide, and violent death, a cast that taxes Hercule Poirot’s “little grey cells” before he reaches one of the most startling conclusions of his fabled career.