''Repulsion'' is a 1965 British psychological horror film directed by Creator/RomanPolanski, based on a scenario by Gérard Brach and Roman Polanski. It was Polanski's first English language film, and was filmed in Britain, as such being his second film made outside Poland. It is also the first film in his so-called "Apartment Trilogy" (followed by ''Film/RosemarysBaby'' and ''Film/TheTenant'').

Creator/CatherineDeneuve stars as Carol, a young Belgian manicurist who lives in London with her sister Helen. Carol seems generally nervous and fearful, particularly of men. When Helen decides to go on a holiday to Italy with her married boyfriend, Carol is left home alone for a few days. [[MindScrew It doesn't turn out to be a very pleasant experience]]. Cooped up alone in the apartment, Carol slowly starts to go mad.

!!This film provides examples of:

* AllMenArePerverts: Even seeming NiceGuy Colin has trouble respecting Carol's boundaries, and nearly ever other male in the film is lecherous, condescending, crude, unfaithful, or all of the above.
* BookEnds: The film opens with a tight closeup of Carol's eye. It ends with the camera zooming in to the photo of Carol as a child, ending with a tight closeup on her eye.
* TheCobblersChildrenHaveNoShoes: Carol, the manicurist, bites her nails.
* CrankyLandlord: The landlord (who else?). In addition to being cranky, he's also a creep who tries to force himself on Carol.
* CreatorCameo: Polanski dressed as a woman as one of the tenants coming into Carol's apartment at the end.
* DoesNotLikeMen: Carol is either this, or just really, really afraid of them.
* DoggedNiceGuy: Really nastily subverted with Colin. He breaks down the door to the apartment, he says stuff about how he can't live without her and he had to see her, and she caves in his skull with a candlestick.
* EpicFail: Carol's attempt to hide the body and the murder weapon. For that matter, instead of simply ''locking'' the door, she nails a board in front with a candlestick. And it's ''[[SarcasmMode not noticeable at all]]'' that she overturned the sofa to hide her second body.
* EyeOpen: Starts with A tight closeup of Carol's eye as the entire opening credits roll by.
* {{Fingore}}: Carol, gripped by some fit of mania, slices the finger of a customer she's supposed to be servicing at the beauty salon.
* GainaxEnding: What the hell happened to Carol at the end? Is she dead, or just in some kind of a coma?
* GoMadFromTheIsolation: Carol, apparently much quicker than most people. Then again, she doesn't seem to have been all that sane to begin with...
* HairRaisingHare: The skinned rabbit that Helen plans to cook and that Carol leaves sitting out in the living room.
* TheImmodestOrgasm: One of the first things that disturbs Carol's obviously already fragile mental state is the sound of her sister moaning in orgasm from sex with her boyfriend.
* LivingEmotionalCrutch: Helen doesn't seem particularly loving or supportive, but her presence keeps Carol (barely) functional, and it only takes about a week without Helen to cause Carol to become totally delusional and homicidal.
* MindScrew: The viewer is put in Carol's position of never knowing what's really happening and what she's hallucinating.
* MirrorScare: The first sign that Carol is more than just shy and high-strung. She sees a reflection of a man in the mirror, but he isn't there when she turns around.
* MundaneHorror: Basically the gist of the whole "apartment trilogy". The main character starts experiencing weird hallucinations at her flat, including cracks in the walls and AlienGeometries.
* OneWordTitle: ''Repulsion''
* PietaPlagiarism: When she's knocked out due to whatever, one of the other tenants picks her up. Though it's more of a BridalCarry.
* ParalyzingFearOfSexuality: Taken to the extreme.
* QuieterThanSilence: Carol almost ''never'' speaks, so when she's alone in the house, this is natural. But special mention has to go to the [[{{ImagineSpot}} Imagine Spot]]s where a man breaks into her room and assaults her. All we hear in those scenes is a clock ticking... and it's '''''[[NightmareFuel terrifying]]'''''.
* TheQuietOne: Carol fits this trope, to a T.
* RapeLeadsToInsanity: It's strongly implied, in the final shot, that Carol's mental problems stem from having been raped as a girl by a male relative or family friend.
* SanitySlippage: The whole plot of the film. It's obvious that something's wrong with Carol by the 30-minute mark, when she sees a crack in the sidewalk and fixates on it, sitting on a bench and staring for over an hour. It gets worse from there.