Whenever someone says they don't watch horror movies, instead of rejecting the presence of that person in your life from that moment on, try to understand why such reluctance exists. Every argument is valid. Some people simply don't like the feeling those movies leave with you; they don't like to be scared, or they simply don't like them. Hey, it's a free world, and we should let people like whatever they want, as long as this doesn't pose harm to anybody else, right? However, when someone says horror movies are stupid, try to get that person to reveal what's so stupid about them.

It's a work of art like any other, and it's targeted toward people that actually like the stuff. Wouldn't it be cool to turn someone into a horror fan by subjecting (sorry, showing) them to a movie they'd normally like, but one that becomes a great horror movie by the end? This is a list of those films you can launch a vendetta with, movies that can change the minds of horror haters. These are 13 films that either quickly or subtly turn into horror experiences that are brilliant but disturbing.

Updated on August 16th, 2023 by Federico Furzan: This article has been updated with additional content to keep the discussion fresh and relevant with even more information and new entries. Spoiler alert

18 Parasite (2019)

Parasite movie
CJ Entertainment 

Parasite has become probably the most infamous and popular instance of a recent film that has completely switched its approach and style and veered directly into the disturbing abyss of horror-thriller aesthetics. The great Bong Joon-ho film begins as a dark satire about class consciousness in which a poor family schemes their way into the home of an incredibly wealthy one.

Halfway through, however, there's a drastic revelation that saps practically all the humor and mischief out of the film and sends the runtime barreling toward breathless intensity, unpredictable thrills, and depressing social commentary.

17 Kill List (2011)

Kill List tunnel
Optimum Releasing

Ben Wheatley's Kill List is one of those beauties you should go into completely blind when you see it for the first time. The poster doesn't show much about the film's horrific third act and trailers aren't really acceptable for films in this list. Regardless, nothing, absolutely nothing, can prepare you for the twist Kill List bases its resolution on.

This is the tale of a broken man who, for the sake of keeping his head and his family together, accepts to kill. But it's also an original presentation of the subject for something darker than we can imagine. Neil Maskell is amazing as usual, as well as the rest of the cast in this unique thriller-turned-horror film.

16 From Dusk Till Dawn (1996)

George Clooney Seth Gecko in From Dusk Till Dawn
Miramax Films

Are you also one of those that believe Tarantino directed the first half of From Dusk Till Dawn? Yeah, welcome to our club! Arguably the best film by Robert Rodriguez starts a fast-paced heist adventure featuring likable, yet corrupt criminals that will do anything to cross over to Mexico and be free.

When they take a family hostage and finally make it to the other side, karma will hit in the form of the coolest, raunchiest, and most spectacular bar in the world. If only the Titty Twister bar existed... Only no vampires, please!

15 Funny Games US (2007)

A scene from Funny Games (2007)
Warner Independent Pictures / Tartan Films

If you root for the 1997 version of Michael Haneke's home invasion thriller, it's alright. Both versions work really well. However, 2007's Funny Games feels more shocking as it stars some familiar faces that we can't associate with genre movies instantly.

Naomi Watts and Tim Roth star as parents who get harassed by a couple of kids in their own homes. Sounds like a typical home invasion film, right? Only Haneke has no obstacles when portraying a version of suburbia hell for two very unfortunate parents and their boy. It's so sick and nihilistic that it's hard not to call this one a horror film.

14 Audition (1999)

Audition bed scene
American Cinematheque

Some of us will die on the "Audition is a rom-com for horror fans" hill. The story about a man who decides to put together a fake TV show audition to find the love of his life sounds absurd with its chauvinistic premise.

However, when that bag moves while the phone rings and this Takashi Miike masterpiece shows its true nature, we are left at the mercy of one beautiful psychopath's hands. Nothing can prepare you for this one.

Related: The 30 Best Horror Movies of All Time, Ranked

13 Bone Tomahawk (2015)

Kurt Russell in Bone Tomahawk
RLJ Entertainment

There's an interesting pedigree of Western films which become horror. From The Burrowers and Dead Birds to The Wind and Organ Trail, a handful of films have blended the two distinct genres to interesting results. One of the best films to do so is undoubtedly S. Craig Zahler's Bone Tomahawk, a more-or-less traditional Western that becomes an extremely brutal, bone-crunching masterpiece of sick surprises.

Kurt Russell is downright astounding (among a great cast that includes Matthew Fox, Patrick Wilson, Richard Jenkins, Lili Simmons, and David Arquette) as a stern sheriff on a mission. The film almost takes a similar approach to the John Ford classic The Searchers, but deconstructs and eviscerates it into something much nastier. Bone Tomahawk follows Russell's Sheriff Franklin Hunt, who leads a posse to track down three kidnapped people and save them from brutal inbred cannibals living out in the wilds.

12 Harpoon (2019)

Harpoon boat film still
Dread Central Presents

Suspicions about adultery turn Rob Grant's Harpoon from a dull psychological drama to an intense, and actually funny, open-water film. The story is told from the perspective of three characters who go on a yacht trip to find themselves victims of sheer bad luck.

You will never guess where the film goes. This Canadian sleeper hit deserves a lot of love from genre fans who are looking to get their fix on unpredictable, well-scripted thrillers.

11 Hunter Hunter (2020)

Hunter Hunter Trailer Hunts a Big Bad Wolf with Devon Sawa & Nick Stahl
IFC Films

Hunter Hunter is on this list because of one simple thing: its ending. We know, we know, we said halfway through, but in this thriller by Shawn Linden, the gloomy atmosphere keeps getting denser without the film going into full horror mode.

But when it does, it's so intense, you will never expect it. Your mouth will drop, your stomach will sink, and your skin will crumble at the sight of the single greatest piece of a revenge act ever put on film. Hunter Hunter also featured the return of Dewon Sawa to the big screen.

10 The Wicker Man (1973)

The Wicker Man Neil Howie ending
British Lion Films

Yes, we all know The Wicker Man is a horror film by now. But imagine being in 1973 and bearing witness to the horrific ordeal a clueless victim was subjected to just because he was a... yeah, just go watch the movie if you haven't already.

The first half is a rather nice exploration of folklore and paganism in a way that feels restrained and almost safe. But then, it becomes nightmare fuel for every single viewer with an abject fear of fire (and lust). Lots of it.

9 Apostle (2018)

Dan Stevens on a small boat in Apostle
Netflix

Dan Stevens is brooding, intense, and utterly perfect in this baffling historical film that movies from suspenseful thriller to outright supernatural horror in the most grotesque fashion. Somewhat similar to The Wicker Man but much grittier, weirder, and bonkers, Apostle finds a man trying to rescue his kidnapped sister from a mysterious cult at the dawn of the 20th century.

Led by a phenomenal Michael Sheen, the cult is enigmatic and intimidating, and Stevens' character has to infiltrate it and convince everyone that he's a true believer. The way Gareth Evans' film turns out is utterly unpredictable, massively disturbing, and kind of philosophically beautiful, as morbid as it is.

Related: 10 Horror Sequels That Should Have Been Much Scarier

8 Sunshine (2007)

Sunshine cillian murphy
Fox Searchlight Pictures

This Danny Boyle sci-fi epic is a masterpiece of modern cinema. The story about a crew trying to save the world by literally giving it sunlight starts as a philosophical tale of existentialism and individualism that merges well in the void of space.

However, the isolation is stronger than what one of them can control, and the way the beautifully stylized film introduces its own monstrous antagonist is as mysterious as it is satisfying. Sunshine becomes brutally violent and surprisingly scary. Don't let anyone tell you this is just a sci-fi adventure film, because it certainly isn't.

7 The Killing of a Sacred Deer (2017)

Barry Keoghan eating spaghetti in Killing of a Sacred Deer
A24 / Curzon Artificial Eye

This one's a bit of a cheat. The Killing of a Sacred Deer was in no way trying to hide the fact that it had horror lurking in its raw premise. The mood, the performances, the feeling everything was going to end up bad.

They were no match for what the plot ultimately reveals as its device: A boy with an agenda. We won't spoil much, but this is one of those "love it or hate it" films, even if it stars huge names like Colin Farrell, Nicole Kidman, and Barry Keoghan. Director Yorgos Lanthimos tells an infinitely haunting story of a family that ultimately has to make a painful choice.

6 Deliverance (1972)

Jon Voight as Ed Gentry in Deliverance
Warner Bros.

John Boorman's sharp approach to survival thrillers, Deliverance, is an unforgettable film regardless of what genre you identify it with. It tells the story of a group of friends who decide to go camping in an area that should not be visited.

Plain and simple. When the bad guys arrive, a nightmare literally comes true, and the film goes from a thriller to a horror experience that was able to change movie audiences forever. It's been spoofed and referenced many times over the years, though the original scene is still just as terrifying.

5 The Vanishing (1988)

The Vanishing 1988 tree scene
Argos Films

George Sluizer's first iteration of The Vanishing was made in 1988. It was so horrific that sometime after, he was offered to remake it in English and with more famous actors. The result wasn't the same.

The Vanishing, also known as Spoorloos, tells the story of a man desperate to find his missing partner. One day they stopped at a rest stop, and she was never seen again. Eventually, he comes upon a suspect, and when his master plan is revealed, you will feel your stomach drop. This drama-turned-horror is a nihilistic nightmare that you will never recover from.

4 The Perfection (2018)

Logan Browning and Allison Williams in The Perfection
Netflix

A young cellist travels to Asia to recruit music students for a prestigious academy. A one-night stand progresses to vomiting maggots, getting stranded in the middle of nowhere, and brutal violence. This is just the beginning.

In Richard Shepard's very underrated film The Perfection, there are several movies trapped in one insanely effective psychological thriller. The great thing is you will like all of them. Music and virtuosity are the film's theme and that's about all we can say about it. You should see it for yourself.

Related: Horror Movies That Will Make Seasoned Fans Sick to Their Stomachs

3 The 'Burbs (1989)

Corey Feldman Tom Hanks The Burbs
Universal Pictures

Joe Dante's The 'Burbs is a funny adult comedy directed by a guy who constantly crosses over to territories that make studios nervous. In this one Tom Hanks stars as Ray, a working-class dude taking a few days off when suddenly he notices strange things about his new neighbors.

With a couple of other neighbors on the same block, he starts investigating and discovers the Klopeks may be more dangerous than he thought. That is murder-dangerous. Human remains start getting found, and then The 'Burbs goes into full genre mode, scaring some of the children in the room whose parents thought the cute comedy with Tom Hanks was safer.

2 The Lighthouse (2019)

Willem Dafoe in The Lighthouse
A24 / VVS Films

In Robert Eggers' The Lighthouse, there are a few hints that could help you figure out where the film goes. However, Eggers doesn't care for structure or rules. He just wants to filter stories through a medium he's designed.

In the film, two lighthouse keepers get isolated after a storm ravages the island. As their minds become deteriorated, the film goes into fantasy horror mode when hallucinations become much more dangerous than they seem. We're still interpreting this film, so if you feel sort of confused when the credits roll, join the club.

1 We Need to Talk About Kevin (2011)

Tilda Swinton in We Need to Talk About Kevin.
Artificial Eye / Oscilloscope Laboratories

Lynne Ramsay's We Need to Talk About Kevin is a nightmare from the beginning. But one that's definitely grounded in a depiction of Eva, a desperate mother who's able to recognize evil in the most improbable of places: her son Kevin. Told in flashback mode (the book used a similar fashion, as it consists mostly of letters from Eva to her "estranged" family), the film depicts a lonely woman that's been execrated by society because of a past event involving her son.

Not even her husband and daughter are in the picture anymore. However, in the flashback scenes, we find out the reason. This is when the film turns from a drama to a full-blown horror portrayal of an evil teenager whose hatred was wider than we imagined at first. The twist at the ending is better seen than spoiled.