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Movies like Leech (2021)

The best movies like Leech (2021) are Laboratory Conditions (2018), Assimilate (2019) and Alien: Specimen (2019). If Leech hooked you with its thriller and horror, these 30 similar films are what to watch next, and every pick says why it matches.

Quick picks

  1. Laboratory Conditions (2018)

    A physician investigating a missing body disrupts an unlawful experiment.

    Why it matches: Recommended by TMDB viewers · both horror & drama

    Worth the HypeMovies like this
  2. Assimilate (2019)

    Three friends making a web series about their town discover that their neighbors are being killed and replaced by creatures who are perfect copies of their victims.

    Why it matches: Recommended by TMDB viewers · both horror & thriller

    Popcorn FlickMovies like this
  3. Alien: Specimen (2019)

    During the night shift in a colony greenhouse, a botanist does her best to contain suspicious soil samples that have alarmed her sensitive lab dog.

    Why it matches: Recommended by TMDB viewers · both drama & horror

    Popcorn FlickMovies like this
  4. 2073 (2024)

    Inspired by Chris Marker's iconic 1962 featurette La Jetée; the year is 2073—a not-so-distant dystopian future—and the setting is New San Francisco, the scorched-earth tech-dominant police state where democracy and personal freedom have been well and truly obliterated.

    Why it matches: Recommended by TMDB viewers · both thriller & science fiction

    Popcorn FlickMovies like this
  5. The Vanishing (1993)

    The boyfriend of an abducted woman never gives up the search as the abductor looks on.

    Why it matches: Recommended by TMDB viewers · both thriller & drama

    Popcorn FlickMovies like this
  6. Alien: Containment (2019)

    Aboard a small escape pod, four survivors try to discover what caused the destruction of their spaceship.

    Why it matches: Recommended by TMDB viewers · both drama & horror

    Popcorn FlickMovies like this
  7. Clayface (2026)

    Matt Hagen's meteoric rise from Gotham street kid to Hollywood leading man is tragically cut short when a local crime boss's actions leave him horribly disfigured. Abandoned by his team and with nothing left, Matt seeks out a cutting edge treatment that miraculously returns him to his former self… but also unexpectedly affects his grip on reality, spiraling him down a destructive path of all-consuming revenge.

    Why it matches: Recommended by TMDB viewers · both horror & thriller

    Worth the HypeMovies like this
  8. Containment (2015)

    Neighbors in a block wake one morning to find they have been sealed inside their apartments. Can they work together to find out why? Or will they destroy each other in their fight to escape?

    Why it matches: Recommended by TMDB viewers · both thriller & horror

  9. Southbound (2015)

    On a desolate stretch of desert highway, weary travelers — two men on the run from their past, a band on their way to the next gig, a man struggling to get home, a brother in search of his long-lost sister and a family on vacation — are forced to confront their worst fears and darkest secrets in these interwoven tales of terror and remorse on the open road.

    Why it matches: Recommended by TMDB viewers · both thriller & horror

  10. Splinter (2008)

    When their plans for a nature trip go awry, Polly and boyfriend Seth decide to check into a motel. On their way, they're carjacked and kidnapped by low-rent crooks Dennis and Lacey, who take the victims and their SUV to a nearby gas station. Along the way, they encounter an increasingly terrifying horde of parasites, and if any of them intend to survive, they'll have to outsmart the deadly organisms.

    Why it matches: Recommended by TMDB viewers · both horror & thriller

    Popcorn FlickMovies like this
  11. Crimes of the Future (2022)

    With his partner Caprice, celebrity performance artist Saul Tenser publicly showcases the metamorphosis of his organs in avant-garde performances. An investigator from the National Organ Registry obsessively tracks their movements, which is when a mysterious group is revealed... Their mission — to use Tenser's notoriety to shed light on the next phase of human evolution.

    Why it matches: Recommended by TMDB viewers · both science fiction & horror

    Popcorn FlickMovies like this
  12. Gemini Man (2019)

    Henry Brogan is an elite 51-year-old assassin who's ready to call it quits after completing his 72nd job. His plans get turned upside down when he becomes the target of a mysterious operative who can seemingly predict his every move. To his horror, Brogan soon learns that the man who's trying to kill him is a younger, faster, cloned version of himself.

    Why it matches: Recommended by TMDB viewers · both thriller & science fiction

    Popcorn FlickMovies like this
  13. Hollow Man (2000)

    Cocky researcher Sebastian Caine is working on a project to make living creatures invisible. Determined to achieve the ultimate breakthrough, Caine pushes his team to move to the next phase — using himself as the subject. The test is a success, but when the process can't be reversed and Caine seems doomed to future without flesh, he starts to turn increasingly dangerous.

    Why it matches: Recommended by TMDB viewers · both science fiction & thriller

    Popcorn FlickMovies like this
  14. Vesper (2022)

    After the collapse of Earth's ecosystem, Vesper, a 13-year-old girl struggling to survive with her paralyzed Father, meets a mysterious Woman with a secret that forces Vesper to use her wits, strength and bio-hacking abilities to fight for the possibility of a future.

    Why it matches: Recommended by TMDB viewers · both science fiction & drama

    Popcorn FlickMovies like this
  15. Siren (2016)

    A bachelor party becomes a savage fight for survival when the groomsmen unwittingly unleash a fabled predator upon the festivities.

    Why it matches: Recommended by TMDB viewers · both horror & thriller

  16. The Locksmith (2023)

    A thief fresh out of prison, tries to work his way back into the life of his daughter and ex-fiancé. Determined, he is forced to use the skills he has as a gifted locksmith. Things take a tumultuous turn after an unexpected disappearance.

    Why it matches: Recommended by TMDB viewers · both thriller & drama

  17. The Experiment (2010)

    20 men are chosen to participate in the roles of guards and prisoners in a psychological study that ultimately spirals out of control.

    Why it matches: Recommended by TMDB viewers · both thriller & drama

    Popcorn FlickMovies like this
  18. The Truth About Emanuel (2013)

    A troubled young woman becomes obsessed with her mysterious new neighbor, who bears a striking resemblance to the girl's dead mother.

    Why it matches: Recommended by TMDB viewers · both drama & thriller

    Popcorn FlickMovies like this
  19. Suburbicon (2017)

    In the quiet family town of Suburbicon during the 1950s, the best and worst of humanity is hilariously reflected through the deeds of seemingly ordinary people. When a home invasion turns deadly, a picture-perfect family turns to blackmail, revenge and murder.

    Why it matches: Recommended by TMDB viewers · both thriller & drama

  20. Zygote (2017)

    The two remaining crew members of a mining operation in the Arctic Circle fight to survive against an alien creature.

    Why it matches: Recommended by TMDB viewers · both horror & science fiction

    Worth the HypeMovies like this
  21. Woven (2025)

    Miša, a young man with powerful telekinetic abilities, finds himself trapped in a dark experiment where he is subjected to manipulation and abuse. Though he is offered various comforts and pleasures once he is freed from his confinement, Miša rejects these temptations. Driven by a quest for truth and freedom, he embarks on a dangerous journey to uncover the secrets behind his powers and reclaim his autonomy.

    Why it matches: Similar story and style · both science fiction & drama

  22. Hellraiser (1987)

    A hedonistic man finds a mysterious puzzle box that summons a group of gruesome beings known as the Cenobites. These otherworldly entities open the doors to a dominion where pain and pleasure are indivisible.

    Why it matches: Similar story and style · both horror & thriller

    Popcorn FlickMovies like this
  23. Popsy (2006)

    Briggs Sheridan is not that bad a guy, but he's going to have to fake it if he wants to survive the next four days. He owes Mr. Reggie fifty grand and it's time to pay up. Mr. Reggie has a solution, though . . . a job. All Sheridan has to do is complete one simple task and he will make it through the week with all of his body parts intact, as long as the job doesn't kill him first. Based on the story by Stephen King.

    Why it matches: Similar story and style · both horror & thriller

  24. The Cave (2005)

    After a group of biologists discovers a huge network of unexplored caves in Romania and, believing it to be an undisturbed eco-system that has produced a new species, they hire the best American team of underwater cave explorers in the world. While exploring deeper into the underwater caves, a rockslide blocks their exit, and they soon discover a larger carnivorous creature has added them to its food chain.

    Why it matches: Similar story and style · both horror & thriller

  25. I Decided to Leave (2015)

    A man decides to leave. He knows he wants to do something with his life. He just hasn't figured out what yet.

    Why it matches: Similar story and style · both science fiction & drama

  26. Boomerang (2025)

    Boomerang is a short film set in a post-collapse Berlin 50 years into the future: Raven finds an old diary from a 2020s pro Palestine activist and gets inspired to try some of its "recipes for disaster". Shot in an ASMR-style this experimental film is filled with sneaky folk songs leading Raven to turn their sadness into rage, and their rage into action. It's an attempt at making a piece of agit prop directed at passive "allies" and liberals who are too busy protecting their cushy lives, to realise their inactivity is making them complicit. It’s a film about the process of changing your mind, about what you’re gonna do, when presented with new information.

    Why it matches: Similar story and style · both science fiction

  27. Visions of Europe (2004)

    Twenty-five films from twenty-five European countries by twenty-five European directors.

    Why it matches: Similar story and style · both drama

  28. SARAH (2019)

    An overcritical guy encounters a mysterious dating app profile he can't swipe away, leaving him caught between attraction and fear.

    Why it matches: Similar story and style · both horror

  29. De Geur Van Regen (1989)

    Two brothers have to show out of the ruined house they are still living. The older brother has to go to an institution, but does not want this. He wants to prove himself by catching a pike.

    Why it matches: Similar story and style · both drama

  30. Re Fu Ge (TBA)

    A story about immigrants being moved around, one leaves and one gets left behind.

    Why it matches: Similar story and style · both drama

Like Leech and something else?

Blend two favourites and we’ll find the films in between.

Frequently asked questions

What are the best movies like Leech?

The closest matches to Leech are Laboratory Conditions (2018), Assimilate (2019) and Alien: Specimen (2019). Below are 27 more, each with the reason it matches.

What should I watch after Leech?

Start with Laboratory Conditions (2018), the closest match to Leech.

What is the highest-rated movie like Leech?

Clayface (2026), rated 7.4/10 by 403 TMDB users.

What is the newest movie like Leech?

Clayface (2026) is the most recent release on this list.

Are there English movies like Leech?

Yes: Laboratory Conditions (2018), Assimilate (2019) and Alien: Specimen (2019).

How are movies similar to Leech chosen?

First come films that Trakt’s viewers watch alongside Leech, then TMDB’s recommendations and films it rates as similar in story and genre. Each pick says which signal put it there.

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