In Aswan, Mrs. Allerton and Tim Allerton watch Hercule Poirot and Rosalie Otterbourne walking at the Cataract Hotel. Rosalie tells Poirot she’s not happy at the gloomy hotel. They walk past sellers and shops; Rosalie drops film off at one of the shops. Tim joins them by the river as they watch Linnet and Simon getting off the boat. Poirot studies Simon and thinks he’s heard his voice before. Rosalie expresses her jealousy toward Linnet. Poirot says, “all is not the gold that glitters”. When Poirot sees Jaqueline de Bellefort, he remembers she and Simon from the restaurant Chez Ma Tante. Jackie surprises Simon and Linnet as they walk up the path, Linnet slinks back and Simon is furious.
Simon, Linnet, Andrew Pennington and Tim Allerton dine together at the Cataract Hotel. Poirot sits with Mrs. Otterbourne and Rosalie. Mrs. Otterbourne gives Poirot a copy of her book, Under the Fig Tree. Jackie enters the dining room and chooses a seat with a direct view of Linnet.
Linnet asks for Poirot’s help as she feels persecuted and threatened by Jackie. Poirot insists he is on vacation and not working. Linnet says Jackie has found them on every stop on their honeymoon. Poirot points out that Jackie hasn’t done anything to her or Simon. He admits he saw Simon and Jackie together in London and suggests that Linnet feels guilty about stealing her friend’s man. Linnet asks Poirot to talk to Jackie, he agrees.
Poirot tells Jackie about the night he saw them in London and that many things have happened since. He tells Jackie to forget about the past and move on with her life. Jackie says she loved both Linnet and Simon, but once Simon saw Linnet he couldn’t see anything else. Jackie pulls a pearl-handled pistol out of her bag. She says she was going to kill but now she’s just following Simon and Linnet, trying to get under their skin. Poirot warns Jackie about letting evil into her heart, but she is determined to continue. Poirot leaves saddened by the conversation.
Poirot talks to Simon. Simon defends Linnet saying nothing that happened was her fault. Poirot says he talked to Jackie, but it didn’t change anything. Simon says he didn’t marry Linnet for her money and that Linnet was too fond of him. Poirot tells Simon about Linnet’s pistol. Simon tells Poirot of his plan to ditch Jackie. He will announce they are staying in the same place for 10 days then leave tomorrow under false names so Jackie won’t be able to follow them. Poirot, Linnet, Simon, Mrs. Allerton and Pennington will all be on the Karnak the following day. Poirot asks Simon whose idea it was to come to Egypt, Simon says it was Linnet’s. Poirot has heard three stories and wonders which is true.
The next day Jackie watches Simon and Linnet leave on a sailboat. Poirot visits Elephantine Island where he meets Guido Richetti and Mrs. Allerton. Mrs. Allerton and Poirot talk about Linnet and sulky Rosalie. They speculate possible crime motives among the traveling group including money, revenge, love, fear and hate. Back at the hotel, Poirot sees Jackie, who is going riding. Poirot travels by bus then train to get to the Karnak. Tim and Mrs. Allerton, Richetti, and a stranger ride with Poirot. Aboard the Karnak are Mrs. Otterbourne and Rosalie, who is annoyed at her sex-writer mother. Linnet and Simon are happy until Jackie appears. Poirot asks Simon why they didn’t spend money for their own passenger boat, Simon says Linnet is sensitive about spending her money.