In Agatha Christie's Death on the Nile, Hercule Poirot investigates the murder of wealthy heiress Linnet Ridgeway on a Nile river cruise after she is shot and killed. The main suspects are the passengers on the steamer, especially Linnet's new husband, Simon Doyle, and his jilted ex-fiancée, Jacqueline de Bellefort, who have both followed the couple on their honeymoon. Poirot eventually uncovers a complex plot involving both Simon and Jackie, who are still lovers and conspire to murder Linnet to inherit her fortune