Infidelity can be a terrifying experience, but when it's mixed with horror, it takes on a whole new level of dread. Here's a curated list of 10 horror films where the act of cheating leads to spine-chilling consequences. These movies not only explore the psychological torment of betrayal but also delve into the supernatural and psychological horror that follows. Whether it's ghostly apparitions or psychological breakdowns, these films offer a thrilling and often chilling look at the darker side of love and betrayal.

The Skeleton Key (2005)
Description: This film follows a hospice nurse who discovers dark secrets in an old Louisiana plantation house. The husband's infidelity plays a pivotal role in the unfolding horror, as past misdeeds come back to haunt the living.
Fact: The film was shot in New Orleans, and the house used as the main setting was actually built for the movie.


The Descent (2005)
Description: Although primarily a survival horror, the film's backstory involves infidelity, which adds layers to the characters' motivations and the ensuing terror in the 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 history, where the husband's past infidelity becomes a haunting presence, literally and figuratively.
Fact: The film is loosely based on real events, though the actual story differs significantly from the movie's plot.


The Babadook (2014)
Description: While not explicitly about infidelity, the film deals with the psychological horror of grief and repressed emotions, which can be seen as a metaphor for the consequences of betrayal in a relationship.
Fact: The film was initially banned in several countries due to its intense themes.


The Invitation (2015)
Description: A dinner party turns sinister when the host, whose husband had an affair, invites old friends to discuss a new cult-like philosophy. The film explores paranoia and the aftermath of infidelity.
Fact: The film was shot in one location, enhancing its claustrophobic feel.


The Autopsy of Jane Doe (2016)
Description: While not directly about infidelity, the film's horror stems from uncovering the dark past of a mysterious corpse, which includes themes of betrayal and revenge.
Fact: The film was praised for its unique premise and chilling atmosphere.


The Other Side of the Door (2016)
Description: A grieving mother opens a forbidden door to communicate with her dead son, only to unleash a malevolent spirit. The husband's infidelity is a subplot that contributes to the family's unraveling.
Fact: The film was shot in India, providing an exotic backdrop to its supernatural tale.


The Witch (2015)
Description: Set in 1630s New England, this film explores the breakdown of a family due to suspicion, isolation, and accusations of witchcraft, with infidelity as a catalyst for the family's unraveling.
Fact: The film uses authentic 17th-century language, adding to its eerie authenticity.


The Unborn (2009)
Description: While not directly about infidelity, the film explores themes of possession and the consequences of past actions, including a subplot involving a cheating husband whose actions lead to supernatural repercussions.
Fact: The film features a cameo by Gary Oldman, who plays a rabbi helping the protagonist.


The Pact (2012)
Description: This film involves a woman uncovering dark family secrets, including her mother's murder linked to her father's infidelity. The horror unfolds as she faces the consequences of these past betrayals.
Fact: The film premiered at the Sundance Film Festival and was well-received for its suspenseful storytelling.
