20 movies so disturbing that you can't finish them in one go

The Human Centipede | Image Source: Prime Video (IFC Films)
The Human Centipede | Image Source: Prime Video (IFC Films)

Certain films stand out in the horror genre for their unflinching portrayal of violence and disturbing themes, often leaving audiences in shock and disbelief. These films push the boundaries of what is acceptable in storytelling, exploring the darkest corners of human nature and the extreme lengths individuals can go to.

The House That Jack Built(2019) | Image Source: Prime Video (TrustNordisk (Denmark) Les Films du Losange (France))
The House That Jack Built(2019) | Image Source: Prime Video (TrustNordisk (Denmark) Les Films du Losange (France))

From gruesome body horror to psychological terror, these movies challenge viewers’ tolerance for brutality and moral ambiguity. Below, we delve into a selection of the most notorious horror films that only the bravest viewers can watch without flinching. Each film has carved a niche in cinematic history for its shocking content and unsettling narratives.

20) Society (1989)

Society (1989) | Image Source: Netflix (Wild Street Pictures) Society (1989)
Society (1989) | Image Source: Netflix (Wild Street Pictures) Society (1989)

Directed by Brian Yuzna, this body horror satire derides class divisions and social hierarchies in an excess of surreal, grotesque imagery. The tale of a young boy named Bill gradually leads him to suspect that his affluent family and their snobbish friends are somehow connected to some ghastly and depraved rites.

The movie finishes with a jarring "shunting" scene in which the social elites show their true monstrous form.

Society is a film famous for its incredibly gratuitous practical effects, revulsion and imagery that generates discomfort throughout. It is a highly atypical and unforgettable horror movie ever made in that genre.

19) The Girl Next Door (2007)

The Girl Next Door (2007) | Image Source: Prime Video (Starz Home Entertainment)
The Girl Next Door (2007) | Image Source: Prime Video (Starz Home Entertainment)

Adapted from a true-life story, The Girl Next Door is the gruesome account of two sisters tortured without mercy by their caregivers. It has savage and merciless scenes; one among those darkly perceived films of the human psyche with violence as the subject. A gruesome exposure to violence and mental torture through brutal assault presents a haunting landscape of what occurred.

The movie raises questions of morality and complicity which leave the audience uncomfortable. Its unyielding stance makes it potent yet unsettling to watch.

18) Terrifier (2016)

Terrifier (2016) | Image Source: Prime Video (Dread Central)
Terrifier (2016) | Image Source: Prime Video (Dread Central)

Amien Leone brings to life Art the Clown in Terrifier. This killer clown strolls around stalking and executing helpless victims on Halloween night, which is truly shocking as it is violent, creative in killings, and creepily depressing as a sadistic murderer. The movie is graphic with scarce dialogue, as it holds practical effects and detailed imagery, creating fright - making this visceral film.

Here, Terrifier brings its plot around fear and evil, in which Art becomes a horror icon. The most infamous scenes of this movie, especially one on a kill, become its trademark and favorite with horror fans looking for extreme cinema.

17) The Poughkeepsie Tapes (2007)

The Poughkeepsie Tapes(2007) | Image Source: Prime Video ( MGM Distribution Co. (via Orion Pictures))
The Poughkeepsie Tapes(2007) | Image Source: Prime Video ( MGM Distribution Co. (via Orion Pictures))

The Poughkeepsie Tapes is a found footage horror movie covering horrific case studies of a serial killer who taped his atrocities. The storyline presents itself in the form of interviews, police tapes, and tapes found, putting the viewer into the demented brain of the killer.

This movie is distinct with an unsettling approach of realism and psychological horror because it portrays the thin line between fiction and reality. The Poughkeepsie Tapes involves debates over voyeurism and trauma related to violence and the impact that it causes.

16) Bone Tomahawk (2015)

Bone Tomahawk (2015) | Image Source: Netflix (RLJ Entertainment)
Bone Tomahawk (2015) | Image Source: Netflix (RLJ Entertainment)

As Bone Tomahawk might be the closest movie to appease connoisseurs of horror cinema with a story of a small-town sheriff who goes on a rescue mission to free captives taken by cannibalistic clowns, slow-burning tension and character development are notable for being quite fine, although graphic towards the end.

With the savagery of the tribe that the rescue party has to face, scenes of intense violence and horror are unleashed before the audience in the West against the backdrop of the film.

Bone Tomahawk takes up themes of survival, morality, and the darkness of humanity, making this film unlike any other or forgotten experience at the cinema.

15) Maniac (1980)

Maniac (1980) | Image Source: Prime Video (Analysis Film Releasing Corporation)
Maniac (1980) | Image Source: Prime Video (Analysis Film Releasing Corporation)

Directed by William Lustig, this is one of the most gruesome films ever. The movie revolves around Frank Zito, an unbalanced serial killer of women in New York City. The film became notorious not only for the depth it had in terms of graphic violence involved but also for the sense it made about psychology since it delved inside Frank's mind and traumatic past.

Shooting in a very gritty style, Maniac catches up with the city's seedy underbelly, enhancing the film's dread. Intensive performances and shocking imagery at times, but it is a pretty tough and memorable entry into the horror genre in which loneliness, madness, and the nature of evil are all under discussion.

14) Inside (2007)

Inside (2007) | Image Source: Prime Video (La Fabrique de Films)
Inside (2007) | Image Source: Prime Video (La Fabrique de Films)

Inside is a French horror movie by Julien Maury and Alexandre Bustillo, in which a pregnant woman is victimized by some inhuman intruder trying to snatch her baby. This movie is noted for its tension, which never ends, accompanied by episodes of graphical violence, mainly home invasion attacks and stiff attacks.

Thus, it is not true that the horror of motherhood is psychological since the psychological horror then cuts into the sadism's physical horror from the intrusion of that intruder, thus making that harrowing experience a fact.

Inside is a sad movie about loss, survival, and the primal instinct to protect. It is horrifying but riveting in its brutal imagery.

13) Henry: Portrait of a Serial Killer (1986)

Henry: Portrait of a Serial Killer (1986) | Image Source: Prime Video(Greycat Films)
Henry: Portrait of a Serial Killer (1986) | Image Source: Prime Video(Greycat Films)

Henry: Portrait of a Serial Killer is a movie written and directed by John McNaughton. It is an unflinching look at the lifestyle and crimes of a psychopath. The film about the actual serial killer Henry Lee Lucas reveals the vicious murders committed by Henry along with his friend. Its raw, untainted violence mixed with the feel of a documentary can create the creepiest feeling for a film that lingers inside long.

It raises questions about morals, the nature of evil, and the human capacity to commit violence, which is both disturbing and intellectually stimulating.

12) The House That Jack Built (2018)

The House That Jack Built (2018) | Image Source: Prime Video (TrustNordisk (Denmark) Les Films du Losange )
The House That Jack Built (2018) | Image Source: Prime Video (TrustNordisk (Denmark) Les Films du Losange )

This is a plot by Lars von Trier of the mind of a serial killer called Jack over 12 years. The movie reflects in the form of recounting each of his many murders, forming a basis of his mixed philosophy and rationalization of those acts. Shot on a spate of graphic violence, this is a thought-provoking discussion on some of the themes of art versus morality and what it means to be evil.

Von Trier's provocative style continues to challenge the viewer through its bleak outlook and thought-provoking storyline, bringing them into the discussion on the nature of art and the human condition. The House That Jack Built is a disturbing dive into a fractured mind.

11) The Hills Have Eyes (1977)

The Hills Have Eyes (1977) | Image Source: Prime Video (Vanguard)
The Hills Have Eyes (1977) | Image Source: Prime Video (Vanguard)

In Wes Craven's The Hills Have Eyes, a family left in the desert meets the rage of a cannibalist clan. The film blends survival horror elements with social observation, thus exposing the savagery of humankind through extreme conditions. Its imagery is extremely nauseating, and there is too much violence for even tolerable, uncomfortable moments.

The Hills Have Eyes explores themes of family, revenge, and the fight to survive, making the movie a classic in the horror genre.

10) Cannibal Holocaust (1980)

Cannibal Holocaust (1980) | Image Source: Prime Video (United Artists Europa)
Cannibal Holocaust (1980) | Image Source: Prime Video (United Artists Europa)

Cannibal Holocaust received a lot of publicity for the violent scenes, including some scenes of animal cruelty and human sacrifice. The film captures an expedition by a documentary team into the Amazonian rainforest in search of research on indigenous tribes.

Rescue teams exhume images showing the crew turning savage and murdering natives whom they came across. The line between fiction and reality is very easily crossed in the film, and it shockingly features some scenes that were so discussed at the time of release, such as butchering.

The film critiques how Westerners exploit the cultures of the indigenous people, and it brings forth some questions on the nature of documentary filmmaking and violent presentation.

9) I Spit on Your Grave (1978)

I Spit on Your Grave (1978) | Image Source: Prime Video(The Jerry Gross Organization)
I Spit on Your Grave (1978) | Image Source: Prime Video(The Jerry Gross Organization)

Directed by Meir Zarchi, I Spit on Your Grave is one of the infamous revenge films that revolves around a young woman, Jennifer, who roams around to take vengeance against the gang of men she perceives raped her with brutality. Graphic scenes of s*xual violence followed by revenge make it one of the most divisive films in the genre of horror.

Arguably, the exploitation of trauma—some like it—is yet a commentary on female empowerment. There is still much debate as to the impact of violence, and moral ambiguity made it leave a mark that provokes the argument on women in horror.

8) The Evil Dead (1981)

The Evil Dead (1981) | Image Source: Apple TV ( New Line Cinema)
The Evil Dead (1981) | Image Source: Apple TV ( New Line Cinema)

Sam Raimi's Evil Dead takes a party of friends into a remote cabin in the woods, where they inadvertently unleash malevolent spirits by discovering an ancient book called the Necronomicon.

The Evil Dead is a cult classic with themes of survival, friendship, and how thin the line between life and death can be.

7) Antichrist (2009)

Antichrist (2009) | Image Source: Prime Video (Nordisk Film Distribution)
Antichrist (2009) | Image Source: Prime Video (Nordisk Film Distribution)

Antichrist is a 2009 psychological horror film by Lars von Trier, where a couple, played by Willem Dafoe and Charlotte Gainsbourg, retreat into an inaccessible cabin in the woods after the tragic death of their child. The couple's encounter with pain causes a breakdown of their relationship, followed by heavy anguish and physical disturbance.

It is a composition of chapters concerning the darker aspects of human nature through pain and remorse. Known for graphic and unsettling imagery and symbolic visuals blended with emotional performances, Antichrist premiered at the 2009 Cannes Film Festival, where it sparked controversy and elicited shock but received critical recognition, particularly Gainsbourg earning a Best Actress nod.

6) Martyrs (2008)

Martyrs (2008) | Image Source: Prime Video (Wild Bunch)
Martyrs (2008) | Image Source: Prime Video (Wild Bunch)

Directed by Pascal Laugier, Martyrs is a French horror film that traces suffering and transcendence. The movie revolves around two drastically battered young women: Anna and Lucie. Lucie sets out to kill her tormentors after she escapes from them, while Anna gets entangled in a sort of secret society obsessed with this meaningless idea of martyrdom.

This film is also marked by its violence, gore, and philosophical considerations of pain, belief, and even the afterlife. Martyrs shocked audiences with its dark imagery and bold plot; it's now a modern horror classic.

5) A Serbian Film (2010)

A Serbian Film (2010)| Image Source: Prime Video(Unearthed Films )
A Serbian Film (2010)| Image Source: Prime Video(Unearthed Films )

A Serbian Film is probably the most scandalous movie of modern cinema. This film has extreme graphic content, violent scenes, along with s*xual assault scenes. The story is about a retired p*rnography star whose decision to resume work for an artistic project revealed to be something sinister, the underground sadistic world of depravity.

The film is a disturbing commentary about the state of society and its indulgent exploitation of human specimens. It provokes visceral reactions in audiences by touching on issues most people would rather keep taboo and pushes the envelope with graphic imagery.

4) The Human Centipede (2009)

The Human Centipede (2009) | Image Source: Prime Video (IFC Films)
The Human Centipede (2009) | Image Source: Prime Video (IFC Films)

The Human Centipede is a shocking body horror by Tom Six. It involves a deranged surgeon, Dr. Heiter, kidnapping three tourists and performing grotesque surgical procedures on them. He connects the mouths with the rear ends via surgery of three people, making a human centipede.

The bizarre premise and graphic depiction of body horror forces a film-watching audience to question its limits of acceptability. No matter how taboo it's been as a product, The Human Centipede has gathered a rather militant following and precipitated discussions on the limits of horror.

It has a strong focus on dehumanization, medical ethics, and the utter absurdity of extreme body modification.

3) Saw (2004)

Saw (2004) | Image Source: Prime Video ( Lions Gate Films)
Saw (2004) | Image Source: Prime Video ( Lions Gate Films)

Saw is a film by James Wan, taking the audience through the mind of John Kramer, popularly known as the Jigsaw Killer. He kidnaps his victims and puts them in intricate machines where they are put to the test to prove their will to survive and assess life choices. This is all done in innovative structure and multi-storytelling, culminating in surprising twists and intense psychological tension.

Its graphic violence and complicated machines have raised the bar for horror movie franchise success. Saw causes the audience to question morality, guilt, and the fragility of human life as to the value of human existence.

2) Hostel (2005)

Hostel (2005) | Image Source: Netflix (Lions Gate Films)
Hostel (2005) | Image Source: Netflix (Lions Gate Films)

Hostel is a film directed by Eli Roth that delineates the spine-chilling tale of three backpackers who travel to Europe with the urge for an adventure. The journey takes them on an unplanned journey to a remote, off-map Slovakian hostel, where they unknowingly get entangled with a vicious underground organization torturing and killing unsuspecting tourists for cold, hard cash.

Shot in a graphic manner that tells all the violence and torture, the movie arguably assumes the form of horror manifestation cinematographically, violating the girth of gore the viewer would stand for.

The film questions the exploitation of tourists and the darker side of human nature. The film is as frightening as it is thought-provoking—it is a horror film.

1) The Texas Chainsaw Massacre (1974)

The Texas Chainsaw Massacre (1974) | Image Source: Netflix (Bryanston Distributing Company)
The Texas Chainsaw Massacre (1974) | Image Source: Netflix (Bryanston Distributing Company)

The Texas Chainsaw Massacre is the legendary attempt to make the first slasher when a group of friends stumbles upon a cannibal family driving through rural Texas. Around the cult icon Leather Face, hauntingly armed with a chainsaw to sow fear, the raw, relentless atmosphere with minimal gore creates a visceral experience that will be felt long after the screening.

This film is one of the most inspirational horror movies ever. It presents survival, madness, and horrors in rural America, and the documentary-style cinematography gives credence to this realism.

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Edited by Priscillah Mueni