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''Death on the Nile'' is a 1937 mystery novel by Creator/AgathaChristie.

Literature/HerculePoirot is on holiday in Egypt, on a Nile River cruise. Among the other passengers is Linnet Ridgeway, a rich, beautiful heiress, honeymooning with her husband Simon Doyle. Doyle was engaged to Linnetís best friend, Jacqueline de Bellefort, before he met Linnet, and broke it off. Heartbroken and wanting revenge on her former friend for stealing her fiancé, Jacqueline started following them everywhere they go. When Linnet gets killed, Jacqueline is the obvious suspect. But is that really the case?

Christie adapted the story as a stage play titled ''Murder on the Nile'' in 1944. The story was later adapted as a 1978 film boasting an AllStarCast that included Peter Ustinov (the first of six times Ustinov played Poirot in film or television), Creator/MaggieSmith, Creator/BetteDavis, Creator/MiaFarrow, Creator/DavidNiven, and Creator/AngelaLansbury. It was directed by John Guillermin. The story was also adapted for BBC Radio 4 in 1997, with John Moffatt playing Poirot. In 2004 it was adapted for the ninth season of the television series ''Series/{{Poirot}}''; tropes for the adaptation are listed on the series page.

!! The original book provides examples of:

* AccidentalTruth: With nothing more than her obsession with "bloodlust and the sex instinct" to justify her, Salome Otterbourne drunkenly suggests to Poirot the name of [[spoiler:first Jackie and then Simon]] as the killer. She's right. [[spoiler:Both times.]]
* AffablyEvil: [[spoiler: Both Andrew Pennington and Simon Doyle.]]
* TheAlcoholic: Mrs. Otterbourne.
* AlcoholicParent: Mrs. Otterbourne.
* ArtisticLicenseGeography: During questioning, Cornelia Robson gives her address as the name of her family home, followed by the name of the town. You can get away with this in British small towns where everyone, including the postman, knows exactly which house is which (or at least you could have in Christie's day) -- but Cornelia is ''American'', and would properly have felt this to be inadequate without the actual street address.
* AssholeVictim: Linnet isn't one of the worst Christie examples, but stealing her best friend's fiancé makes her easy to dislike.
** In the beginning of the book, she mentions to Jackie that she's having a number of houses on her property knocked down and the people moved, because they make her property look unsightly. It's slightly zigzagged in that she says that she's having new and better houses built for them, and that most of the people agreed, but she mentions too that some of the residents don't want to move, and she just can't fathom why. Essentially, she comes off as spoiled and thoughtless but not really deserving of death [[spoiler: particularly since she turns out to have been the victim of a rather ruthless and meticulously planned murder.]]
* BetterToDieThanBeKilled: [[spoiler:Jacqueline kills herself and Simon rather than being executed for Linnet's murder.]]
* {{Blackmail}}: [[spoiler: Louise. It gets her killed.]]
* {{Bookends}}: The story begins and ends with people talking about Linnet in a pub.
* BrokenBird: Poor Rosalie Otterbourne.
* BusmansHoliday: Once again, Poirot must solve a murder while on vacation.
* ClingyJealousGirl: Jacqueline to Simon. [[spoiler:At least, that's the act she puts on. ''Linnet'' is actually the one Simon viewed as fitting this trope in regards to him.]]
* CoolOldGuy: Poirot, as always. Mrs Allerton and Colonel Race too.
* CouldntFindAPen: The killer uses the victim's blood to trace a letter on the wall, presumably on the assumption that the police will assume the victim used her own blood to try to write the name of her killer. This doesn't work because Poirot, Race, and Dr. Bessner are all smart enough to know the victim would have died instantly and couldn't have written anything after being shot. The only reaction it produces is a snarky comment from Poirot that killer [[YouWatchTooMuchX is apparently a fan of old-fashioned melodramas]]. [[spoiler: In a double-twist on this trope, it was written to implicate one of the people actually directly involved in the murder, in an attempt to make it look like another party was trying to frame her.]]
* DeadManWriting: [[spoiler:Subverted: The initial written by Linnet in her own blood is quickly discovered to actually have been written by the murderer (Linnet died instantly, leaving no time to write a message), seemingly to throw suspicion on Jackie. It later turns out that Jackie was actively involved in the planning of the murder and the message served to direct suspicion ''away'' from her.]]
* DrivenToSuicide: [[spoiler:In the novel, there's a ''second'' pistol which Jacqueline uses to kill Simon and herself rather than face execution for murder. Poirot says he knew of the second gun and [[LeaveBehindAPistol allowed them the choice]] for the "honorable" way out.]]
* DyingClue: The J written in blood on the wall would seem to be Linnet's way of naming Jackie as the killer. Unlike most examples of this trope, this is never taken seriously as a possible clue, because it's obvious Linnet died instantly and wouldn't have had time to write anything on the wall. It's actually considered evidence in Jackie's favor, since the killer must have been the one who wrote the "J" and Jackie obviously wouldn't have done that. [[spoiler:This was exactly what the killer was counting on--Simon did the J to make it look like someone was trying to frame Jackie.]]
* EeriePaleSkinnedBrunette: Jacqueline de Bellefort.
* ExoticBackdropSetting: The murder could have taken place on a ship in England, for all that native Egyptians or Egyptian culture affect the plot.
* {{Foreshadowing}}:
-->'''Colonel Race:''' ''(talking about [[spoiler:Mrs. Otterbourne]])'' What a poisonous woman! Whew! Why didn't somebody murder ''her!'' \\
'''Poirot:''' It may yet happen.
* HeKnowsTooMuch: The reason that [[spoiler:Louise Bourget and Salome Otterbourne]] were killed.
* HerrDoktor: Dr. Bessner.
* HisNameIs: [[spoiler: Mrs Otterbourne is shot in the head mere seconds before she names the culprit.]]
* InnocentBlueEyes: Simon Doyle has bright blue eyes, [[spoiler: but is definitely not innocent.]]
* ItsAllAboutMe: Jim Fergusson, despite his proclaimed views, is a self-centered jerk who has nothing but contempt for anyone and anything apart from himself and his own values. He spends most of the book talking loudly about how the murder victims all deserved to die for being useless, then can't figure out why Cornelia doesn't want to marry him.
* IWantMyBelovedToBeHappy: [[spoiler: After TheReveal, Jaqueline tells Poirot that she encouraged Simon to dump her for Linnet so that he could have Linnet's money if that was what he really wanted. However, Simon refused because he loved Jaqueline while Linnet was not his type.]]
* LadyDrunk: Mrs. Otterbourne.
* LastMinuteHookUp: [[spoiler: Cornelia Robson and Dr. Bessner, Rosalie Otterbourne and Tim Allerton.]] Agatha Christie tends often to do this, with Poirot as TheMatchmaker.
* LittleUselessGun: Jacqueline's pearl-handled pistol is referred to several times as "a toy," but it's also made clear that it's a lethal weapon.
* LoveMakesYouEvil: [[spoiler:Jacqueline De Bellefort. The only reason she helped Simon in murdering Linnet is that she wanted to protect him; she knew that he'd try it alone if she doesn't help, and he'd certainly screw it up and get caught.]]
* MadLove: Jacqueline for Simon. Lampshaded by Poirot at the end.
* MommasBoy: Tim Allerton is very close with Mrs Allerton, who is a very nice woman.
* MurderSuicide: [[spoiler:Jacqueline shoots Simon and then herself at the end.]]
* NoGuyWantsToBeChased: Simon Doyle claims this as the reason that he broke off his relationship with his fiancee Jacqueline and married Jackie's best friend Linnet. He said he was put off by the fact that Jackie loved him more than he loved her, and that "a man wants to own his woman. He doesn't want to feel that she owns him." [[spoiler: Simon was being honest about his feelings about possessive women, but it was Linnet he thought was trying to own him, not Jackie.]]
* ObfuscatingDisability: [[spoiler:Simon Doyle is ruled out because he had just been shot in the foot shortly before the murder, and the idea that he would have decided to still carry out a murder plot despite being only barely able to walk, and did it so stealthily that no one saw him do it, strains plausibility too much to consider. But Simon was, in fact, the killer; he faked being shot, rushed off to kill the victim and ran back, then shot his own foot for real to keep up the ruse.]]
* OldMoney: Miss Van Schuyler and Cornelia Robson, although only Miss Van Schuyler exhibits the stereotypical snobbishness of the upper crust. [[spoiler:Poirot ''blows Miss Van Schuyler's mind'' by revealing to her that Mr. Ferguson, for whom she has developed a distinct dislike, is actually a BlueBlood who won't use his title or rely on his family's money because he's a communist.]]
* OneTractMind:
** Mr. Ferguson, who regards any activity not tending towards the Communist utopia as fiddling {{while Rome burns}}.
** Mrs. Otterbourne. As a "transgressive" author (transgressive for the Thirties, anyway), she turns out to be sexually obsessed; all her theories regarding Linnet's murder paint the perpetrator as driven by sexual jealousy. [[spoiler:Her instinct leads her, ironically, to point the finger at both Jackie and Simon, but for totally wrong reasons.]]
* PoirotSpeak: Amusingly, Mrs. Otterbourne engages in this [[spoiler: before getting shot]].
* PsychoExGirlfriend: ''Jacqueline''. [[spoiler: But not so much [[NewOldFlame ex]], and the "psycho" part is staged.]]
* RichBitch:
** Miss Van Schuyler and Joanna Southwood.
** Linnet herself is a bit of a deconstruction. She has been rich all her life and can tend to be a bit callous because of it, the most obvious example being her behavior towards Simon and Jackie, but she is also portrayed as a [[SpoiledSweet generally kind and generous person]] who is uncomfortable with Joanna Southwood's behavior, and is implied to feel guilty over how she treated her former best friend. Poirot, though not approving of her actions, pities her even before the murder.
* RichSuitorPoorSuitor:
** Linnet and Jacqueline.
** Also Ferguson and Dr. Bessner for Cornelia Robson. [[spoiler: Though in something of a twist, it turns out that Dr. Bessner was the poor one, at least as compared to Ferguson a.k.a. Lord Dawlish.]]
* RustproofBlood: [[spoiler: Poirot finds the murder weapon (which has been chucked into the titular river) wrapped inside a cloth. The mysterious pink stain on the cloth leads Poirot to suspect that one of the passengers faked a bloody injury (using red ink hidden in a nail polish bottle) in order to create an alibi for himself.]]
* SpannerInTheWorks: A double-whammy. The killer's plan would have gone off without a hitch if [[spoiler: Linnet's maid Louise hadn't had a fit of insomnia and happened to come up the stairs at the right time to see Simon entering and exiting the cabin to murder his wife.]] And then, when the killer was taking care of ''that'' little glitch in events, [[spoiler: Salome Otterbourne happened to see Jacqueline entering the cabin to murder Louise.]]
** The same can be said of Poirot being aboard the Karnak, for both [[spoiler: Simon and Jackie, but also Tim Allerton. When out to commit murder or a jewel theft respectively, it doesn't exactly make things easier to have one of the world's greatest detectives in the vicinity]].
* StagedShooting: [[spoiler:Jackie fakes shooting Simon to give him an alibi for Linnet's murder.]]
* StalkerWithACrush: Jacqueline on Simon. [[spoiler: Turns out she was pretending, and actually in cahoots with Simon.]]
* StealingFromTheTill: [[spoiler:Andrew Pennington has been doing this to Linnet, which is what provides his motive for her murder. It's also implied that Simon Doyle was doing the same thing to his previous employers, which is why he was "out of a job" when the book started.]]
* StickyFingers: [[spoiler: Miss Van Schuyler and Tim Allerton.]]
* SurprisinglySimilarStories:
** [[spoiler:A man ambitiously decides to commit murder for power and wealth, and his significant other aids him by planning how to carry it out. He pretends to be a loving protector of the victim (who is threatened by other enemies) and then kills them in their sleep, leaving a bloody mark to direct suspicion away from himself and his partner in crime. The plan starts to go wrong and the pair commit more murders to try (unsuccessfully) to get away with the first one. ''Theatre/{{Macbeth}}'', anyone?]]
** [[spoiler: Two lovers having the man pretend to jilt her for a rich woman was also the plot of Christie's ''Literature/EvilUnderTheSun''.]]
* SympatheticMurderer: [[spoiler:The combination of Linnet trying to steal Simon from Jaqueline, Jaqueline's willingness to let Simon go if that was what he really wanted, and the fact that she only got involved to protect Simon, makes Jackie an extremely sympathetic figure to Poirot, Race, the other characters on the boat, and the reader. Poirot allows her to kill herself and avoid the gallows.]]
%%* TheSummation
* TooDumbToLive: Pretty much everyone who is killed. [[spoiler: And the murderer himself, Simon Doyle. His lover Jacqueline de Bellefort knew this and decided to help him to kill Linnet.]]
* ATragedyOfImpulsiveness: [[spoiler:If Simon had just let the rock fall on Linnet, he and Jackie would have lived happily ever after. This would have kept the maid Louise and Mrs. Otterbourne alive, and Pennington would have gotten Simon to sign papers to fix his crooked accounting. However, Simon was afraid that Jackie was the one who pushed the rock, and he didn't want her to go down for the murder, so he saved Linnet to be killed later.]]
** Also, a subversion: [[spoiler: The entire crime appears to be this, based on the assumption that someone overheard what happened between Jackie and Simon and took advantage of the situation to steal the pistol and kill Linnet. Actually, the entire crime was planned down to the last detail.]]
* TriangRelations: Type 4. A = Jacqueline, B = Simon, C = Linnet [[spoiler: Actually, this is an act, and the real triangle is A = Linnet, B = Simon, C = Jacqueline, but Linnet does not know this.]]
* {{Tsundere}}: Rosalie Otterbourne, so much.
* WeUsedToBeFriends: [[spoiler: Until you try to steal your best friend's fiancé. Linnet, you bitch.]]
* WomanScorned: Jacqueline [[spoiler: (or at least that's what she wanted everyone to believe)]].
* {{Yandere}}: Jacqueline. [[spoiler: This is a SubvertedTrope as we find out it was it was all a cover to hide her complicity with Simon. In fact, she was even ready to set her love free to marry ''her best friend''.]]
* YesMan: Discussed. When Linnet first approaches Poirot to try to get him to deal with Jacqueline, Poirot turns her down and politely but firmly explains that Linnet's conduct has been far from unimpeachable, Jacqueline's anger and resentment is justified, and that Linnet herself on some level knows this given her subsequent reaction. When they meet later, Linnet is distinctly cool to Poirot, and Poirot is slightly amused to realise that Linnet has been surrounded for so long with people who agree with, acquiesce to and reaffirm Linnet's own view of the world that she's genuinely unprepared to deal with someone who bluntly tells her the truth.
* YouWatchTooMuchX: When they find an initial over the bed written in the victim's blood, Poirot points out that this has been done so often as to be a DeadHorseTrope and essentially says that the murderer has been watching too many old-fashioned melodramas.

!!The BBC radio adaptation has examples of:

* LargeHam: Sir Donald Sinden as Colonel Race.

!!The 1978 film adaptation has examples of:

* AdaptationDistillation: The film simplified the plot of the novel and removed several superfluous characters.
* AdaptationalBadass: Simon [[spoiler:puts up far stronger resistance and a more convincing denial than in the book; Poirot and Race have to resort to a bluff in order to cause him (and Jackie) to confess. Some of his lines during this passage are drawn from Christie's stage play, as is the bluff of the moulage test. In the original book, all it takes to break Simon down is the shock of Poirot hitting him with all that he knows.]]
* AdaptationalHeroism:
** Mr. Ferguson comes across more sympathetically, since his character replaces Tim Allerton from the novel as Rosalie's love interest, becoming engaged to her in the final scene.
** Simon Doyle comes out looking [[DownplayedTrope slightly better]], but only in small details that do not change the plot in any way. For example, [[spoiler:he is initially reluctant to go through with the killing of Louise, preferring to pay her (before Jackie convinces him otherwise), and in the final summation his backstory is given slightly more sympathy than in the book.]]
* AdaptationalVillainy: Downplayed with Jacqueline de Bellefort. [[spoiler:It is she, not Simon, who advocates for killing Louise instead of paying her, and a large part of her exposition to Poirot at the end is omitted and replaced by a denial act in conjunction with Simon's.]] The latter of these points is drawn from the final scene in Christie's stage play.
* AdaptationalWimp: Downplayed with Poirot, in that [[spoiler:he does not deliberately allow Jackie to kill herself, but instead she simply steals the original gun and performs the double suicide right in front of him, to his shock. His response: "Quelle tragédie".]]
* AdaptedOut: The film omits Cornelia Robson, the Allertons, Mr Fanthorp, Joanna Southwood, Lord Windlesham, Signor Richetti, and Linnet's maid Marie. ''Murder on the Nile'' omits all of these except Cornelia Robson (renamed Christina Grant), as well as Miss Bowers and Salome and Rosalie Otterbourne (Salome's [[spoiler:death scene, being shot from off-screen, is given instead to Louise.]])
* AnimalAssassin: As Poirot's investigation progresses, the culprit tries to get rid of him by leaving a cobra inside his cabin.
* BrickJoke: During Mr. Choudhury's first scene, there's a gag where he tries and fails to identify the passengers on sight, rather than just asking their names. It comes back during the SummationGathering when Poirot, after a rundown of everyone else's motives for killing Linnet, stops on Choudhury and suggests it was a case of mistaken identity.
* CompositeCharacter: Rosalie Otterbourne is a composite of three separate characters from the book: Rosalie, Cornelia Robson, and Tim Allerton. However, Ms Bowers is given Cornelia's backstory regarding her history with the Ridgeways. Louise takes Marie's role, and Jim Ferguson is a composite of Mr. Ferguson, Mr. Fanthorp, and Tim Allerton (in the latter, being Rosalie Ottorbourne's love interest).
%%* DeadpanSnarker:
%%** Mrs. Van Schuyler and Miss Bowers.
%%** Colonel Race as well.
* EveryOneIsASuspect: The movie ramps this up by taking characters that had no direct motive for killing Linnet Doyle in the book and giving them motives in the film. Specifically, [[spoiler: Salome Otterbourne is facing libel charges from Linnet, which by extension also gives Rosalie a motive. Linnet is also being quite vocal in her denunciation of Doctor Bessner, due to a friend of hers succumbing to a mental illness while under his care. Miss Bowers is given Cornelia Robson's backstory of her father being financially ruined by Linnet's father, only that Miss Bowers is much more bitter and resentful of this fact. Louise is given Marie's backstory and is more persistent in asking Linnet for money for a dowry, Linnet coldly rebuffs these requests]].
** Poirot lampshades this.
-->'''Poirot:''' '' Mon Dieu, how she makes enemies of them all.'' \\

* HisNameIs: [[spoiler:Mrs. Otterbourne, being typically drunk]], takes her time telling who was behind [[spoiler:Jacqueline De Bellefort]]'s death, only to be shot while saying "and I saw that it was--".
* MoodWhiplash: Done very effectively. A rather humorous scene with Mrs. Otterbourne ends abruptly with [[spoiler: her being shot in the head]].
* {{Mooning}}: Mrs. Van Schuyler sees some boys do this at the steamer as they run alongside it on the riverside. She isn't very pleased about it.
* OohMeAccentsSlipping: Mia Farrow does an excellent job of portraying Jackie as an Englishwoman. However, her natural American accent is quite noticeable during the bar scene where she is drunk. In particular her line to Rosalie, "Go on. You were saying something about being somebodies daughter."
* PrettyInMink: A fur stole is used as part of the murder, [[spoiler:specifically to muffle a second gunshot]].
* SarcasticClapping: The killer does this after Poirot finishes [[TheSummation his summation]] near the end, believing that Poirot has no evidence to back it up.
* SceneryPorn: Oh dear God, yes. Legendary cinematographer Jack Cardiff and Egypt are a match made in heaven for the film.
* SimpleYetOpulent: Linnet's costly white dress.
* SummationGathering: All the suspects were present at this, making for a suspenseful scene in which all the characters are looking at each other nervously. In the book, only Colonel Race, Dr. Bessner, and Cornelia Robson are present for Poirot's summation. Averted in the stage play, in which only [[spoiler:Jackie]] is onstage for Canon Pennyfather's final summation.
* SwordCane: Colonel Race saves Poirot from the Cobra left inside his cabin by bursting in with his sword from within his cane, and kills the snake with it.
* UnreliableVoiceover: As Salome Otterbourne is saying "I was talking to one of the crew, who was showing me a most intriguing sight, a buffalo and a cow yoked together tilling the soil", a flashback is shown in which she is in fact secretly buying alcohol from a crew member.

!!''Murder on the Nile'' has examples of:

* AdaptationDistillation: The play simplified the plot of the novel and removed several superfluous characters.
* AdaptationalNameChange: Simon Doyle becomes Simon Mostyn, Jacqueline de Bellefort is Jacqueline de Severac, Linnet is renamed Kay, Cornelia becomes Christina Grant, Mr. Ferguson becomes William Smith, Mrs. van Schyler becomes Helen ffoliot-ffoulkes, and Poirot is replaced by a composite character in Canon Ambrose Pennyfather.
* BittersweetEnding: Poirot's replacement, Canon Pennyfather, attempts to school [[spoiler:Jackie on why she must not take her own life, and instead live on "until the appointed end" and endure the punishment for murder, for the sake of her soul. He hands her back her gun, to allow her to make the choice herself - and after considering, she puts the gun back down and surrenders herself.]]
* CompositeCharacter: Canon Ambrose Pennyfather is a combination of Poirot, Race and Pennington.
* CompressedAdaptation: There are significantly fewer characters than in the book counterpart. [[AdaptationNameChange Names of some characters have also been changed]], while others [[AdaptedOut were completely taken out of the cast]]. Poirot is also removed, as he frequently was in Christie's adaptations of Poirot novels, owing to her dissatisfaction with any actor cast to play him in plays or movies during her lifetime.
* FateDrivesUsTogether: Brought up between William Smith and Christina Grant. He continuously courts her and at last asks to marry her. She refuses at first but it is hinted and later revealed that they do get married.
* ItsPersonal: This element is added to Canon Pennyfather's (the Poirot equivalent's) investigation of the murder of Kay (the Linnet equivalent) as a result of his being her honorary uncle, her deceased father's best friend.
* MaybeEverAfter: The play ends with this possibility open for William Smith and Christina Grant (the equivalents of Mr. Ferguson and Cornelia Robson); this was not the case in the book.
* SparedByTheAdaptation: The play omits [[spoiler:the double suicide, ending instead with Canon Pennyfather pursuading Jackie not to shoot herself.]] The trope applies only in a sense, however, in that while [[spoiler:she and Simon are still alive by the end of the play, they will both most certainly be executed for the murders at some point afterwards.]]