Psycho follows Marion Crane, a young woman who steals money from her employer and goes on the run. Seeking refuge from the law, she checks into the secluded Bates Motel, run by the peculiar Norman Bates. As Marion settles into her room, she begins to notice oddities about Norman and his overbearing mother.

Tragedy strikes when Marion is brutally murdered in the infamous shower scene, shocking audiences with its graphic and unexpected nature. The focus then shifts to Marion's sister, Lila, and her lover, Sam, who become concerned about her disappearance. They team up with a private investigator, Arbogast, to uncover the truth behind Marion's fate.

As the investigation unfolds, dark secrets about Norman and his disturbed relationship with his mother come to light. The suspense builds as Lila and Sam dig deeper into the mysteries of the Bates Motel and its owner. The film takes a chilling turn when the truth is finally revealed, exposing the shocking reality of Norman's split personality and his sinister acts.

With its iconic scenes, unforgettable characters, and a twist ending that has become legendary in cinematic history, Psycho is one of the best movies about multiple personality disorders. It remains a groundbreaking film that continues to both captivate and terrify audiences to this day.

Release: 1960

Stars: Anthony Perkins, Janet Leigh, Vera Miles

Rotten Tomatoes: 96%

In The Shining - directed by Stanley Kubrick and based on Stephen King's iconic novel - we are introduced to the Torrance family. Jack Torrance, a former schoolteacher and aspiring writer, sees an opportunity for a fresh start when he is offered the position of winter caretaker at the grand and secluded Overlook Hotel in the Colorado Rockies. Eager to find solitude and inspiration for his writing, Jack sees this as a chance to bond with his wife Wendy and their young son Danny, who possesses an extraordinary psychic gift known as "the shining."

After the family settles into the expansive and eerie hotel, it becomes evident that they are not alone. The Overlook Hotel has a dark and haunted past, with a long history of violence and madness. The spirits of its previous occupants linger, trapped within its walls and corridors, and they soon begin to exert their influence on Jack's already fragile psyche.

As winter sets in, cutting off all outside communication and isolating the family, the Overlook Hotel transforms into a nightmarish labyrinth of secrets and horrors. Jack's mental state deteriorates rapidly as he becomes increasingly obsessed with the hotel's dark history and the malevolent spirits that inhabit it. Delusions and hallucinations blur the line between reality and nightmare, pushing Jack further into a descent of madness.

The Shining is a masterclass in psychological horror, skillfully weaving together themes of isolation, supernatural forces, and the disintegration of the human mind. Kubrick's direction and Jack Nicholson's iconic performance as Jack Torrance create an unforgettable cinematic experience, further cementing the film's position as one of the best movies about multiple personality disorders.

Release: 1980

Stars: Jack Nicholson, Shelley Duvall, Danny Lloyd

Rotten Tomatoes Score: 82%

"Fight Club" is a provocative and gripping film directed by David Fincher, based on the novel of the same name by Chuck Palahniuk. The story follows an unnamed narrator, played by Edward Norton, who is discontented with his mundane and consumer-driven life. Struggling with insomnia and a lack of purpose, he finds solace in attending various support groups for people with different afflictions, even though he doesn't suffer from any of the conditions.

During his business trip, our protagonist comes face-to-face with Tyler Durden (played by Brad Pitt,) an enigmatic soap salesman with great charm and rebellious nature.The two form an unlikely friendship and together they establish an underground fight club as a means of venting their frustrations and reclaiming their masculinity. The club quickly gains popularity and attracts a growing number of disenchanted men who feel trapped by societal expectations.

As the fight club expands, Tyler's influence over the narrator becomes increasingly profound. Their shared rebellion against the consumerist society evolves into a larger anti-establishment movement called Project Mayhem. The narrator becomes entangled in a web of violence and chaos, questioning his own identity and sanity.

"Fight Club" amazes its audience with bold storytelling, subversive themes, and striking visual style. Fincher's direction - coupled with the raw and intense performances of Norton and Pitt - brings the story to life with visceral impact and raises important questions about the nature of identity. It also serves as a stark reminder of the dark undercurrents that can emerge when individuals grapple with their own demons and the consequence.

Release: 1999

Stars: Brad Pitt, Edward Norton, Meat Loaf

Rotten Tomatoes Score: 79%

In the psychological thriller "Split," directed by M. Night Shyamalan, the story revolves around the harrowing abduction of three teenage girls: Casey Cooke, Claire Benoit, and Marcia. Their lives take a nightmarish turn when they are kidnapped by a mysterious man named Kevin Wendell Crumb, who harbors a complex and haunting secret. Kevin, played by James McAvoy, suffers from dissociative identity disorder (DID), a condition that causes him to have 23 distinct personalities residing within his mind.

Once finding themselves trapped in a secluded underground facility, the girls quickly realize the extent of Kevin's fractured psyche. Each of his personalities has unique characteristics and traits, ranging from innocent children to obsessive-compulsive individuals and even a prim and proper British woman. However, it is his 24th and most formidable personality, known as "The Beast," that poses the greatest threat. This entity, believed to possess supernatural strength and abilities, lurks within Kevin's mind, waiting to be unleashed.

While Casey, played by Anya Taylor-Joy, tries to navigate the chilling depths of Kevin's disturbed psyche, she also grapples with her own troubled past and hidden strength. As the girls attempt to understand the enigma that is Kevin, they must find a way to outsmart their captor and survive his sinister intentions.

"Split" is a gripping and suspenseful film that delves into the depths of the human mind. M. Night Shyamalan's masterful direction and James McAvoy's exceptional performance take viewers on a chilling journey filled with psychological twists and turns, keeping them hooked until the climactic and shocking finale.

Release: 2016

Stars: James McAvoy, Anya Taylor-Joy, Haley Lu Richardson

Rotten Tomatoes Score: 78%

"The Machinist" follows the unsettling life of Trevor Reznik, portrayed by Christian Bale. Trevor is a factory worker suffering from severe insomnia and extreme weight loss, causing him to become emaciated and physically deteriorated. Haunted by guilt and paranoia, Trevor descends into a nightmarish world of psychological torment and confusion.

Set in a gloomy and industrial backdrop, the film hradually discloses Trevor's unraveling mental state and the mystery surrounding his condition. He becomes consumed by strange occurrences, such as cryptic post-it notes and a recurring figure of a man who seems to be stalking him. Paranoia takes hold of Trevor as he suspects that his colleagues and even his own mind are conspiring against him.

Christian Bale delivers an extraordinary and haunting performance in "The Machinist", fully immersing himself in the role of Trevor Reznik. His portrayal leaves audiences questioning the nature of reality and the depths of human consciousness, inviting them to contemplate the fragile line between sanity and madness.

Release: 2004

Stars: Christian Bale, Jennifer Jason Leigh, Aitana Sánchez-Gijón

Rotten Tomatoes Score: 77%

"Shutter Island" is a psychological thriller set in 1954, based on the novel by Dennis Lehane. The film revolves around the story of U.S. Marshal Teddy Daniels, portrayed by Leonardo DiCaprio, and his partner Chuck Aule, played by Mark Ruffalo, as they arrive on Shutter Island, a remote and foreboding psychiatric facility for the criminally insane.

Teddy and Chuck have been assigned to investigate the mysterious disappearance of Rachel Solando, a patient who seemingly vanished from a locked room within the facility. As they delve deeper into the investigation, Teddy begins to uncover a web of dark secrets, conspiracy, and mind-altering experiments conducted on the island.

Haunted by his own past and plagued by disturbing visions, Teddy becomes increasingly suspicious of the staff and patients at Shutter Island. Driven by a personal vendetta and determined to uncover the truth, Teddy unravels layers of deception and confronts his own inner demons along the way. As the layers of the story are peeled back, the shocking truth behind Shutter Island is revealed, leaving audiences captivated and questioning their own perceptions.

With its intricate plot, compelling performances, and atmospheric tension, "Shutter Island" stands as a thrilling and thought-provoking psychological thriller that keeps viewers guessing until the very end. It is a film that lingers in the mind, inviting contemplation long after the credits roll.

Release: 2010

Stars: Leonardo DiCaprio, Emily Mortimer, Mark Ruffalo

Rotten Tomatoes Score: 69%