Delve into the eerie and unsettling world of parasitic horror with this curated list of 10 films. These movies explore the terrifying concept of parasites, both alien and earthly, that invade, control, or transform their hosts. From classic tales to modern masterpieces, this collection offers a thrilling journey into the macabre, providing horror enthusiasts with a unique blend of suspense, gore, and psychological terror.

Shivers (1975)
Description: A parasitic creature is unleashed in an apartment complex, turning residents into sex-crazed maniacs. David Cronenberg's early work explores themes of bodily invasion and loss of control.
Fact: The film was initially banned in several countries due to its graphic content.


Star Trek II: The Wrath of Khan (1982)
Description: While not strictly a horror film, it features the Ceti eels, parasitic creatures that enter the ears of their victims, controlling their minds. This adds a chilling element to the sci-fi adventure.
Fact: The film is often considered one of the best in the Star Trek franchise.


The Thing (1982)
Description: An alien parasite assimilates and imitates its hosts in an Antarctic research station, creating paranoia and terror among the crew. John Carpenter's film is a masterclass in suspense and body horror.
Fact: The film's special effects were created by Rob Bottin, who worked tirelessly to bring the creature to life.


The Dead Zone (1983)
Description: Although primarily a thriller, it features a parasitic element with Johnny Smith's psychic abilities, which could be seen as a form of mental parasitism. David Cronenberg's adaptation of Stephen King's novel.
Fact: The film's ending was changed from the book to provide a more hopeful conclusion.


The Fly (1986)
Description: A scientist's teleportation experiment goes awry, fusing him with a fly, leading to a grotesque transformation. This film is a classic example of body horror, focusing on the physical and psychological effects of parasitism.
Fact: The film's special effects, particularly the transformation scenes, were groundbreaking at the time.


The Host (2006)
Description: A creature emerges from the Han River in Seoul, South Korea, after toxic waste is dumped into it, leading to a family's desperate attempt to rescue their daughter from its clutches. This film blends horror with social commentary, making it a standout in the parasite horror genre.
Fact: The film was inspired by a real-life incident where a US military mortician dumped formaldehyde into the Han River, sparking public outrage.


The Ruins (2008)
Description: A group of friends on vacation in Mexico encounters a deadly parasitic vine that invades their bodies, leading to a horrifying fight for survival. This film delves into the terror of nature's hidden dangers.
Fact: The film was based on the novel by Scott Smith, who also wrote the screenplay.


The Bay (2012)
Description: A small town's water supply is contaminated with a parasitic isopod, leading to gruesome transformations and deaths. Barry Levinson's found footage horror film offers a realistic and terrifying scenario.
Fact: The film uses a mockumentary style to enhance its realism.


Parasite (2019)
Description: While not a traditional horror film, this thriller explores the parasitic nature of social class dynamics, with a twist that delves into horror territory. Bong Joon-ho's film is a metaphorical take on parasitism.
Fact: It became the first non-English language film to win the Best Picture Oscar.


Slither (2006)
Description: A small town is overrun by alien parasites that turn people into grotesque, zombie-like creatures. This film combines horror with dark comedy, offering a fresh take on the body horror subgenre.
Fact: The film was James Gunn's directorial debut, showcasing his unique blend of horror and humor.
