Infidelity is a theme that has been explored in various genres, but when combined with horror, it creates a unique and spine-chilling experience. These films delve into the psychological and supernatural consequences of betrayal, offering a thrilling mix of suspense, fear, and moral dilemmas. Here's a curated list of 10 horror movies where cheating leads to horrifying outcomes, perfect for those who enjoy a mix of romance, drama, and terror.

The Skeleton Key (2005)
Description: A young hospice nurse, Caroline, takes a job at a plantation home in Louisiana where she discovers the dark secrets of Hoodoo magic and the consequences of infidelity.
Fact: The film was shot on location in New Orleans, and the house used in the movie is the Felicity Plantation, which is said to be haunted.


The Descent (2005)
Description: While not directly about infidelity, the film explores themes of betrayal and trust among friends, leading to horrifying consequences in a cave system.
Fact: The film was shot in a real cave system in Scotland, adding to its claustrophobic atmosphere.


The Haunting in Connecticut (2009)
Description: A family moves into a house with a dark past, where the son's visions reveal a history of infidelity and occult practices.
Fact: The film is loosely based on the Snedeker family's alleged haunting in the 1980s.


The Uninvited (2009)
Description: Anna returns home after a stint in a mental hospital to find her father's new girlfriend, Rachel, is not what she seems, leading to a tale of infidelity and ghostly revenge.
Fact: The film is a remake of the 2003 South Korean horror film "A Tale of Two Sisters."


The Autopsy of Jane Doe (2016)
Description: A father and son team of coroners uncover the horrifying truth about a mysterious body, revealing a tale of infidelity and supernatural vengeance.
Fact: The film was praised for its suspenseful build-up and minimal use of jump scares.


The Witch (2015)
Description: Set in 1630s New England, a family's isolation leads to accusations of witchcraft, with infidelity playing a subtle but crucial role in the family's downfall.
Fact: The film uses authentic 17th-century English dialects for added realism.


The Possession of Hannah Grace (2018)
Description: A morgue worker encounters the body of a young woman who was killed after her affair was discovered, leading to supernatural events.
Fact: The film was initially titled "The Heretic" during production.


The Unborn (2009)
Description: A young woman, Casey, is haunted by visions of her twin brother who died in the womb, revealing a dark family secret involving infidelity and supernatural forces.
Fact: The film was originally titled "The Unborn Child" but was changed to avoid confusion with another film.


The Pact (2012)
Description: After her mother's death, Annie returns to her childhood home where she uncovers a dark family secret involving infidelity and a malevolent spirit.
Fact: The film was well-received for its slow-burn approach to horror, focusing on psychological tension.


The Other Side of the Tracks (2008)
Description: A man's infidelity leads to a series of horrifying events when his mistress turns out to be a vengeful spirit.
Fact: This film was inspired by real-life urban legends about haunted train tracks.
