Addiction is a powerful theme that can be explored in various genres, but when combined with horror, it creates a unique and often unsettling experience. This curated list of 9 horror films focuses on the theme of addiction, showcasing how it can lead to psychological and physical horror. These films not only entertain but also provide a deeper look into the human psyche, making them valuable for those interested in psychological horror or anyone looking to understand the darker aspects of addiction.

The Lost Weekend (1945)
Description: One of the earliest films to depict alcoholism in a realistic and terrifying manner, making it a classic in addiction-themed cinema.
Fact: It was one of the first films to deal openly with alcoholism and won the Academy Award for Best Picture.


The Basket Case (1982)
Description: While primarily a horror-comedy, it delves into themes of co-dependence and the lengths one will go to for their 'addiction' to another.
Fact: The film was made on a very low budget, with the director Frank Henenlotter using practical effects to create the film's unique creatures.


The Serpent and the Rainbow (1988)
Description: Though more about voodoo and the supernatural, it touches on themes of addiction to power and control, akin to psychological addiction.
Fact: The film is loosely based on the non-fiction book by Wade Davis about his experiences with Haitian Vodou.


The Addiction (1995)
Description: A philosophical horror film where a philosophy student becomes a vampire, symbolizing her descent into addiction, both literal and metaphorical.
Fact: The film was directed by Abel Ferrara, known for his gritty and often controversial films.


Requiem for a Dream (2000)
Description: This film explores the devastating effects of drug addiction on four individuals, with scenes that are both horrifying and heart-wrenching, making it a perfect fit for this list.
Fact: The film's score by Clint Mansell has become iconic, often used in other media to evoke a sense of despair and loss.


A Scanner Darkly (2006)
Description: Using rotoscoping animation, this film explores a future where drug addiction is rampant, offering a surreal and disturbing vision of dependency.
Fact: The film is based on Philip K. Dick's novel, which was semi-autobiographical, reflecting his own struggles with addiction.


Candy (2006)
Description: A tragic love story intertwined with heroin addiction, offering a raw look at the life of addicts, which can be seen as a horror in itself.
Fact: The film stars Heath Ledger and Abbie Cornish, both delivering powerful performances.


The Exorcist III (1990)
Description: While not directly about addiction, it deals with themes of possession and obsession, paralleling the consuming nature of addiction.
Fact: This sequel was written and directed by William Peter Blatty, the author of the original novel "The Exorcist."


Trainspotting (1996)
Description: This film captures the life of a group of heroin addicts in Edinburgh, blending dark humor with the horror of addiction.
Fact: The film's soundtrack became iconic, featuring songs like "Lust for Life" by Iggy Pop.
