The fiancé of Lord Peter's sister, Mary, is found dead outside the conservatory of the family's shooting lodge in Yorkshire. Peter's and Mary's older brother, the Duke of Denver, is charged with wilful murder and put on trial in the House of Lords.
Wealthy businessman Rex Fortescue is found dead with rye grain in his pocket. His death is followed in quick succession by a woman dying while eating bread and honey, and a maid in her garden. Inspector Neele, in charge of investigating the spate of murders, consults with Miss Marple, who has an interesting...