Movies Like The Square Root of Three

If you liked The Square Root of Three (2001), a horror movie directed by Lorenzo Bianchini, here are 20 movies with a similar feel, based on TMDB's recommendations. Each one links to its cast, trailer and where it's streaming.

1
Silver Bullet (1985)
★ 6.7/10Also horror
The small city of Tarker's Mills is startled by a series of sadistic murders. The population fears the work of a maniac, but sightings of a mysterious, hairy creature soon spread. People lock themselves up at night…
2
The Boogeyman (2023)
★ 6.4/10Also horror
Still reeling from the tragic death of their mother, a teenage girl and her younger sister find themselves plagued by a sadistic presence in their house and struggle to get their grieving father to pay attention before…
3
Play Dead (2022)
★ 6.1/10Also horror
Criminology student Chloe fakes her own death to break into a morgue, in order to retrieve a piece of evidence that ties her younger brother to a crime gone wrong. Once inside, she discovers that a sadistic coroner is…
4
Saint Catherine (2024)
★ 6.2/10Also horror
An orphaned girl is rescued from a satanic ritual and taken to Saint Catherine Institute for homeless youth. There she will learn new skills while facing demons that stalk her.
5
The Last Breath (2024)
★ 6/10Also horror
A group of old college friends reunite on a Caribbean scuba diving trip exploring the wreckage of a WWII battleship and find themselves trapped inside the underwater labyrinth of rusted metal surrounded by great white…
6
Deep Water (2026)
★ 7.4/10Also horror
A group of international passengers on a flight from Los Angeles to Shanghai is forced to make an emergency landing in shark-infested waters. The terrified group is forced to work together and overcome their…
7
Night of the Living Dead (1990)
★ 6.9/10Also horror
A ragtag group barricade themselves in an old Pennsylvania farmhouse to remain safe from a horde of flesh-eating ghouls ravaging the Northeast.
8
Never Let Go (2024)
★ 6.1/10Also horror
As an evil takes over the world beyond their front doorstep, the only protection for a mother and her twin sons is their house and their family’s protective bond.
9
Bloodline Killer (2024)
★ 6/10Also horror
Moira Cole endeavors to rebuild her shattered life after her family's murder at the hands of her deranged and obsessed cousin.
10
Dark Harvest (2023)
★ 6.1/10Also horror
In a small Midwestern town, a deadly annual ritual unfolds when the mythical nightmare, Sawtooth Jack, rises from the cornfields and challenges the town’s teenage boys in a bloody battle of survival.
11
The Devil Conspiracy (2023)
★ 6.4/10Also horror
A powerful biotech company has breakthrough technology allowing them to clone history’s most influential people with just a few fragments of DNA. Behind this company is a cabal of Satanists that steals the shroud of…
12
Succubus (2024)
★ 8.3/10Also horror
A new father going through a marital separation joins a dating app and matches with a beautiful but mysterious young woman... whose powers of seduction and manipulation entangle him in a mystery more horrifying than he…
13
Clown in a Cornfield (2025)
★ 6.1/10Also horror
Quinn and her father have just moved to the quiet town of Kettle Springs hoping for a fresh start. Instead, she discovers a fractured community that has fallen on hard times after the treasured Baypen Corn Syrup…
14
The Wailer (2006)
★ 6.7/10Also horror
On their way to Mexico, six students are stranded in a small town where years before a tragedy took place.
15
The Boy Behind the Door (2020)
★ 6.2/10Also horror
Bobby tries to save himself and his best friend when they are kidnapped on their way home from school.
16
Whisper (2007)
★ 6.3/10Also horror
Sinister things begin happening to kidnappers who are holding a young boy for ransom in a remote cabin.
17
Cobweb (2023)
★ 6.4/10Also horror
Eight year old Peter is plagued by a mysterious, constant tapping from inside his bedroom wall—one that his parents insist is all in his imagination. As Peter's fear intensifies, he believes that his parents could be…
18
Vicious (2025)
★ 6/10Also horror
When Polly receives a mysterious box, it comes with one rule: place inside something she needs, something she hates, and something she loves. If she doesn’t obey, it will consume everything—and everyone—she’s ever known.
19
Eradication (2022)
★ 6.1/10Also horror
When an unknown disease wipes out most of the world’s population, a man with unique blood is isolated for study. Fearing for his wife’s safety, he breaks his quarantine – into a world overrun by monstrous Infected and…
20
No One Gets Out Alive (2021)
★ 5.8/10Also horror
An immigrant in search of the American dream is forced to take a room in a boarding house and soon finds herself in a nightmare from which she can't escape.