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->''And then I come to find out that all of the lesbian sex scenes got cut out of that movie because a test audience was, uh..."turned off" by them. Boy, is'' my ''thumb not on the pulse of America... If'' I ''had been in that test audience, the only one out front protesting would've been Creator/MichaelDouglas demanding that his part be put back in!''
-->-- '''Creator/BillHicks'''

''Basic Instinct'' is a 1992 American erotic thriller/neo-noir film, directed by Creator/PaulVerhoeven and written by Creator/JoeEszterhas, starring Creator/SharonStone, Creator/MichaelDouglas, Jeanne Tripplehorn and George Dzundza.

The film centres around police detective Nick Curran (Douglas), who is put in charge of the investigation of a brutal murder of a wealthy former rock star. Beautiful, seductive and wealthy writer Catherine Tramell (Stone) could be involved; over the course of the investigation, Detective Curran becomes involved in a torrid and intense relationship with the mysterious woman--who turns out to be very dangerous.

It was followed by a sequel that was panned by critics and spectacularly bombed at the box office.

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!!This film provides examples of:

* TheAlibi: Averted. The examples where Catherine is accused of committing the same crimes in the same manner as depicted in her book are incorrectly identified as being an Alibi. They are not; all they are is a reasonable excuse to argue that you aren't stupid enough to commit a crime exactly as you wrote it in your book, it does not prove you didn't commit the crime.
* AllMenArePerverts: What gets Nick into so much trouble.
* AntiHero: The backstory of the film's protagonist, Nick, includes driving his wife to suicide and killing innocent people due to drinking and drug use while on the job. As well, he's verbally abusive to Beth, arguably forces himself on her, and makes a rather homophobic comment to Roxy, "man to man".
* AmbiguouslyEvil: Beth and, [[AlternativeCharacterInterpretation to some people]] Catherine
* AnythingThatMoves: Catherine Tramell.
* TheBadGuyWins: [[spoiler:Catherine succeeds in falsely leading the police and Nick, the anti-hero, into believing Beth was the killer - and Nick killed her, too. Catherine? She successfully escapes the law and proceeds to have sex with Nick. The last shot hints that she is either about to kill him or intended to kill him but calls it off because she likes having sex with him.]]
* BeautyIsBad
* BettyAndVeronica: Good girl Beth (whose name is coincidentally, or perhaps deliberately, similar to Betty) and Catherine. [[spoiler: The interesting subversion is that Beth might very well be as murderous as Catherine is implied to be]]
* BlackWidow: Catherine. Every one of her love interests ends up dead, whether by her own hand or through her manipulation of the situation. [[spoiler: Beth too, if she's responsible for her husband's murder]]
* BlondesAreEvil: Catherine is one of the most sinister blondes in all cinema, a hedonistic sociopath who manipulates everyone around her for her own amusement and gratification, while her girlfriend Roxy is easily driven to murderous fits of jealousy. [[spoiler: and when Beth's murky past is discovered, it's revealed she wore her hair blonde back in those days--whether of her own volition or to imitate Catherine is unclear]]
* ButchLesbian: Unlike most examples of this trope, Roxy is long-haired and attractive, but she epitomizes it with her unpleasant and menacing demeanor.
* CardCarryingVillain: Catherine admits that she has always been pure evil and likes it that way.
* CarFu:
** [[spoiler:Roxy]] first tries to kill Nick by running him over, and then again by playing chicken. [[spoiler:She loses.]]
** The impromptu car chase that Catherine and Nick engage in shortly after they meet that nearly gets them both killed.
* TheChessmaster: Catherine Tramell.
* ChainedToABed: Catherine Tramell is fond of tying her lovers up to the bedposts with a silk scarf, and sometimes uses it to kill them more easily.
* CoitusUninterruptus:
** The extended cut reveals that the killer continues to have sex with Boz, riding him even as she stabs him with the ice pick
** Catherine casually changes her clothes in front of the police detectives sent to escort her to the station for questioning in a show of contempt.
** A naked Nick has a hostile discussion with Roxy just after having had sex with Catherine as casually as if he were fully clothed.
* ColdTurkeysAreEverywhere: In this case, it's because of Catherine trying to break down Nick's willpower by tempting him with cigarettes and alcohol, which he's not supposed to be doing since he's on probation.
* ClingyJealousGirl:
** Roxy in regards to Catherine, threatening to kill Nick if he doesn't leave Catherine alone, [[spoiler: then attempting to do so]]
** Depending on whose version of events is true, [[spoiler: either Catherine or Beth was this to the other, with each woman claiming that the other stalked her after their one night stand. Then there's the murder of Beth's husband and the latest series of killings, which could have been engineered by either woman either as revenge for ending their relationship, or in the hopes of resuming it]]
* DangerouslyGenreSavvy: Inverted. Catherine isn't aware of the structure of the film's plot, she [[BatmanGambit molds the rest of the characters to follow the path she herself lays out for them]] for the novel she's writing during the film. Nick, the cop-on-the-edge with the bad past willingly falls for the FemmeFatale female writer Catherine, Roxy is the possessive girlfriend who is subtly manipulated to go on a rampage out of jealousy, [[spoiler:Beth becomes the fall-guy for the real villainess, etc.]] She strings Nick along mostly through entertaining [[WrongGenreSavvy his hopes that he's part of a different story]] and will successfully charm the mysterious woman with his rugged manliness so they can live happily ever after.
* DateRape: The first scene of Nick and Beth in her flat qualifies as this. He aggressively comes on to her, and she enjoys it at first. By the end he forces himself onto her, and she's clearly struggling against him. After they're done, she calls him out on that fact that he wasn't making ''love'' to her, and angrily tells him to leave.
* DeadpanSnarker: Nick and Catherine.
* DeathBySex: The killer's modus operandi.
* DepravedBisexual: Catherine again. [[spoiler: and she manages to make it seem as though Beth is this too]]
* DoesNotLikeShoes: Catherine is usually barefoot at her house.
* DownerEnding: [[spoiler:Nick clearly doesn't have much longer to live...]]
* DrivesLikeCrazy: Catherine. And Nick, when he's following her.
* DrunkDriver: Gus gets behind the wheel while he's hammered, even though his partner Nick offers to drive him home. He manages not to get himself killed.
* EmbarrassingNickname: Nick is called "Shooter" by a lot of people. It refers to a previous incident in which he accidentally shot and killed a bunch of tourists, which he is still haunted by.
* EnfantTerrible: Catherine is heavily implied to have murdered her parents, as described in yet another of her books about a boy who kills his parents is the exact same manner that her parents died--their boat exploding.
* EvilWearsBlack: Averted with Catherine, who is consistently clad in white, beige, or cream-colored clothing, but played straight with Roxy, who is usually seen in dark-colored wear. [[spoiler: Beth is dressed in varying shades of brown, which possibly hints at the fact that we never know for certain what her involvement is]]
* ExperimentedInCollege: [[spoiler: Beth dismisses her fling with Catherine as this]]
* FanDisservice: The opening sequence. A highly erotic and arousing scene of two gorgeous people going at it. . .and suddenly the woman pulls out an ice pick and viciously stabs the man to death.
* FatalAttraction: Most of the drama.
* FemmeFatale: Catherine is one of the most iconic examples in modern filmmaking. No surprise, seeing as how the entire film is a 90's update on the FilmNoir genre. She seduces both men [[DepravedBisexual and women]] to attain her goals, tempts Nick with her emotional vulnerability after [[spoiler:Roxy]]'s death, [[spoiler:and probably committed all the murders.]]. Beth and Roxy may also qualify depending on how you interpret the film and the characters.
* FollowTheLeader: In the mid-nineties, ''every single thriller'' was ''Basic Instinct'' with some conceit.
** And this film itself was following ''Film/FatalAttraction''. They even got Michael Douglas!
* {{Foreshadowing}}: After talking with Beth, Nick comments to Gus, "She killed him." Misunderstanding, Gus declares, "Beth? Now you've got Beth killing people? Nick corrects him, saying that he was referring to Catherine, [[spoiler: but soon enough, evidence surfaces implying that Beth is indeed involved in the slew of murders that have occurred.]]
* FourIsDeath: [[spoiler:When Detective Gus gets into the elevator to meet Beth, he ends up getting stabbed on the 4th Floor.]]
* FreezeFrameBonus: Before the climax of the movie, Nick drops in at Catherine's house and picks up a page of the manuscript of Catherine last book that she's currently printing. He glances at it very briefly, without reading it. If you freeze frame, you can read the page. [[spoiler: It's a perfect description of the killing that is going to happen in the next scene.]]
** [[spoiler: Take a good look at the woman's body in the opening sequence and at Catherine's body during her sex scenes with Nick. Certain physical characteristics will confirm that she's the killer]]
* GambitRoulette: ... but who cares about the plot?
* {{Giallo}}
* GoingCommando: Catherine, most famously in the interrogation scene.
* GreatWayToGo: "Hey, [[OutWithABang he got off]] before he got offed!"
* {{Honeytrap}}: Catherine takes men to bed, ties them up and murders them.
* {{Homage}}: To ''{{Film/Vertigo}}''. The San Francisco setting, the detective obsessed with his target, and Catherine's outfits and French twist hairstyle are very reminiscent of Kim Novak's
* HollywoodLaw: It is very likely that Catherine Tramell would have been ''immediately'' arrested and charged with murder one after her [[EveryoneRemembersTheStripper infamous interrogation scene]]. There's enough evidence already at that point in the movie that a judge would be inclined to issue an indictment: The victim was murdered mid-coitus in exactly the matter described in one of Tramell's novels. Tramell was known to be the victim's regular sex partner. The victim was last seen alive leaving his nightclub in the company of a woman matching Trammell's description, and his body was found the next morning. That would be more than enough evidence to deliver to a jury in California or anywhere else in the country. Also, the videotape of the interrogation would likely also be admissible as evidence, and although Catherine denied the charge during interrogation, the jury would almost certainly see her for the cold-blooded and manipulative sociopath she very clearly revealed herself to be in that interrogation. Incidentally, the polygraph results would definitely ''not'' be admissible, because polygraphs are known to be unreliable. In fact, it is well-known that sociopaths can beat polygraphs very easily because they lie without shame or nervousness; the fact that she not only passes the polygraph, but does so with no blips whatsoever would just confirm that she's the sociopath that she so obviously is. Realistically, they would have arrested and charged her based on the evidence they had right then and there, and none of the murders that follow would have happened.
* IJustWantToBeYou: [[spoiler:It's eventually revealed that Beth had an affair with Catherine back in college and got obsessed with her to the point of trying to be like her in every way, even dying her hair blond. When Nick confronts Beth over this, she asserts that it was the other way around: Catherine was obsessed with ''her''.]]
* InternalAffairs: The {{Jerkass}} detective seen harassing Nick and Beth during the bar scene, who has apparently been on Nick's case since the infamous shooting incident.
* IronicEcho: Catherine's interrogation scene, when she snarks about being "charged with smoking", as well as how dumb she would have to be to kill someone exactly as she described in her book, is revisited in Nick's, when he makes an identical snark when he lights up a cigarette, then points out how stupid he would have to be to kill the InternalAffairs detective after arguing with him in full view of a police station full of witnesses.
* KarmaHoudini: [[spoiler:Catherine Tramell successfully shifts the blame for the murders to Beth, and gets away with her crimes.]]
* LieDetector: During Catherine's interrogation at the station, she offers to take a polygraph test, which seems to confirm that she's innocent. Nick counters that she simply manipulated the results, because he knows people who have done it before--not mentioning that he's talking about himself.
* MeaningfulName: [[spoiler: a "trammell" is a Scottish death shroud]]
* MirrorScare: After Nick has had sex with Catherine, he walks over to the bathroom and splashes some water on his face. When he looks up, the mirror reveals that Catherine's jealous girlfriend Roxy is standing behind him.
* MostWritersAreWriters: Catherine is a crime novelist. [[spoiler:And a particularly manipulative and genre savvy one at that; by the end of the film it's revealed that she set up almost every event to emulate her own book.]]
* INeverSaidItWasPoison: Nick and Gus try to trip up Roxy and Catherine with this when they try to harp on the fact that both women already know that Johnny Boz was murdered without them having been told, but it fails miserably in both cases when both women point out that it's the obvious conclusion to come to, as the men have already identified themselves as ''homicide'' detectives. As well, Roxy could have easily called Catherine after the cops left her house and warned her that they were on their way.
* NoodleIncident: The death of Catherine's fiance Manny Vasquez. Despite the fact that it happened in the boxing ring, in full view of hundreds of spectators, it's implied she had something to do with this too.
* NotSoDifferent: When Nick asks Beth how she knows so much about Catherine [[spoiler: still unaware of their previous relationship]], Beth claims that she knows the type because she's a psychologist. Nick points out that as a ''practicing'' psychologist (Catherine majored in it college but presumably did not pursue it further), Beth is probably even better at manipulating people--[[spoiler: indeed, if ''she's'' responsible for any of the murders, she's managed to come across as completely innocent while being as much of a sociopath as Catherine is]]
* OnlyAFleshWound: Averted when [[spoiler: Nick shoots Beth]]. She's hit in the shoulder, but bleeds out within minutes.
* OnlyBadGuysCallTheirLawyers: As the cops prepare to take Catherine to the station for questioning, she is asked several times if she wants an attorney present. She brushes off the suggestion, saying she doesn't need one. Earlier, she refuses to come to the station with them, knowing that she doesn't have to unless she's under arrest.
* OutWithABang: The movie opens with a woman murdering her partner during sex. With an ice pick. Ouch.
* PantyShot: Infamously averted.
* PhallicWeapon: The equally infamous ice pick. The fact that it's used during sex emphasizes this.
* PsychoLesbian: Roxy.
* PsychoPsychologist: Catherine successfully convinces Nick that Beth is this trope. Ironically, Catherine herself is noted in the film to fit this trope to some extent since she uses her knowledge of psychology to manipulate others, although she never became a practicing therapist or studied it at the graduate level.
* SelfMadeOrphan: Catherine Trammell killed her parents and wrote a book based on the incident.
* TheSociopath: Catherine Tramell is a rare example of a female sociopath in popular culture. A charismatic, seductive, {{narcissist}}ic author, FemmeFatale, pathological liar and SerialKiller, she manipulates and causes the deaths of nearly everyone in the story, including many of her lovers and her own parents, largely for her own personal gain, amusement and to inspire her novels with no real remorse whatsoever. She is even described as such by multiple characters in the films.
** [[spoiler: Beth might be even worse if she's responsible for any of the murders. Whereas Catherine is blatantly and obviously evil, Beth comes across as a perfectly decent, nice woman. Most mental health experts feel that the ability to create and maintain such a MarySue-type facade while secretly being a horrible person is the classic hallmark of a sociopath]]
* StealthParody: In his book ''The Devil's Guide to Hollywood'', screenwriter Joe Eszterhas states essentially that he conceived and wrote this film in 13 days as a cynical exercise in creating the LowestCommonDenominator screenplay possible. So he could get back his record of being the highest paid screenwriter in Hollywood. And he ''succeeded''.
* ThemeSerialKiller: A woman kills a retired rock 'n roll star during sex, in the exact same way that a rich novelist named Catherine Tramell described in one of her books. When the police suspect her, she points out how stupid she would be if she were to write it down in her book first. Eventually they find the culprit: [[spoiler:police psychologist Beth, an old flame of Nick, who was obsessed with Catherine. Then the last shot reveals Catherine as the real killer, making this an inversion.]]
* TooDumbToLive:
** [[spoiler:Nick goes after Catherine despite all the obvious hints that she's dangerous. She even flat-out ''tells him'' that she is writing a story about an AntiHero detective who falls for the wrong woman, and that the women kills the detective. Nick's partner Gus calls him out on it in-story. Nick is either about to be killed in the last scene or survives in the end is because Catherine had a last-minute change of heart about killing him (if you count the sequel as part of the same story she killed him.]]
** [[spoiler:Beth getting herself shot by Nick. Despite the fact that he's clearly agitated and pointing a gun at her, she puts her hand into her pocket and refuses to remove it even as he orders her to. As it turns out, she wasn't armed, but he had no way of knowing that, and given the circumstances, reacted the way any cop would. It's either idiocy, or just thinking that he loves her too much to shoot her.]]
* TheUnfairSex: Averted. Catherine is a sociopath, Roxy is a PsychoLesbian, Hazel Dobkins killed her husband and children and Beth is a [[spoiler:murder suspect]]. In fact the number of evil females led to accusations of misogyny.
* UnratedEdition: The movie that put the trope into the mainstream.
* TheUnreveal: Who committed each of the murders - Johnny Boz, [[spoiler: Nilsen, Noah Goldstein (the college counsellor), Gus, Beth's husband]] - in the film? Was there only 1 killer? Why was [[spoiler: Nilsen]] investigating [[spoiler: Beth]]? Did Catherine truly have feelings for Roxy or Nick or was it all an act as part of her game? [[spoiler: Does Catherine kill Nick after the last scene?]] The sequel implies she does. Camille Paglia correctly said in her audio commentary of the film that it ended on a big question mark.
* TheVamp: While much of Catherine's character is open to interpretation, there's no denying how easily she manipulates everyone around her (especially by seducing them) to get what she wants.
* WritingAboutYourCrime: Catherine is a suspect because she wrote a novel depicting a very similar crime to Boz's murder.
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