The concept of twins in horror films often explores the duality of human nature, the uncanny, and the supernatural. This curated list of 10 horror films about twins delves into the chilling and often twisted relationships between siblings, offering viewers a unique blend of psychological tension and supernatural dread. Each film brings its own twist to the theme, making this collection a must-watch for fans of horror cinema looking for something both familiar and unsettling.

Sisters (1973)
Description: Brian De Palma's thriller about a woman who may or may not have killed her ex-boyfriend, with her twin sister playing a pivotal role in the mystery.
Fact: The film features a famous split-screen sequence that has become iconic in horror cinema.


The Dark Half (1993)
Description: Based on Stephen King's novel, this film involves a writer whose pseudonym comes to life, revealing a dark twin persona.
Fact: The film was directed by George A. Romero, known for his work in horror, particularly the "Night of the Living Dead" series.


The Skeleton Key (2005)
Description: While not directly about twins, the film features a plot involving a hoodoo ritual that involves twin-like entities, creating a creepy atmosphere.
Fact: The film was shot on location in New Orleans, adding to its authentic Southern Gothic feel.


The Devil's Double (2011)
Description: Although not strictly horror, this film about a man forced to impersonate Saddam Hussein's son involves a twin-like dynamic and intense psychological horror elements.
Fact: Dominic Cooper plays both the main character and his double, showcasing his acting range.


The Ward (2010)
Description: A young woman finds herself in a mental institution where she encounters the ghost of a former patient, who turns out to be her twin.
Fact: This was John Carpenter's return to directing after a decade-long hiatus from feature films.


The Unborn (2009)
Description: A young woman is haunted by the spirit of her twin brother who died in the womb, leading to a supernatural horror story.
Fact: The film includes elements of Jewish folklore, specifically the concept of a dybbuk.


Dead Ringers (1988)
Description: This film follows the lives of twin gynecologists whose professional and personal lives spiral out of control, exploring themes of identity and obsession.
Fact: The film was inspired by the real-life story of twin gynecologists Stewart and Cyril Marcus. Jeremy Irons played both roles, showcasing his versatility.


The Orphanage (2007)
Description: While not about twins, the film features a haunting presence of a child that could be interpreted as a twin-like figure in the protagonist's life.
Fact: The film was Spain's official selection for the Best Foreign Language Film at the 80th Academy Awards.


The Twin (2022)
Description: A family moves to the countryside after losing one of their twin sons, only to find that the surviving twin might not be who they think he is.
Fact: The film explores themes of grief and identity, with a chilling twist on the twin trope.


The Other (1972)
Description: A psychological horror film about twin boys in the 1930s, where one twin's actions lead to a series of mysterious and tragic events.
Fact: The film was one of the first to use the "twins" theme in horror, setting a precedent for many films to follow.
