Movies Like Dementamania

If you liked Dementamania (2013), a thriller and horror movie directed by Kit Ryan, 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
Blackwood (2014)
★ 5.9/10Also thriller and horror
Having recovered from a shattering emotional breakdown, college professor Ben Marshall relocates to the countryside with his wife and young son, hoping for a fresh start. He has a teaching job lined up and a new home…
2
Play Dead (2022)
★ 6.1/10Also horror and thriller
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…
3
Eradication (2022)
★ 6.1/10Also horror and thriller
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…
4
Cheat (2023)
★ 7.1/10Also thriller and horror
On the surface it's believed to be another urban legend - a supernatural being from the afterlife is violently killing anyone who cheats on their significant other in the small college town of Silvercreek…
5
Prodigy (2017)
★ 6.1/10Also thriller
Jimmy is a committed child psychologist who uses his own playbook, but when he is brought in to work with Ellie, he is completely unprepared for his subject—a 9-year-old psychopathic genius with nothing to lose. As he…
6
Hider in the House (1989)
★ 6.2/10Also thriller
A deranged man hides in the attic of a new house and becomes obsessed with the unsuspecting family that moves in.
7
The Unhealer (2021)
★ 5.8/10Also thriller and horror
A botched faith healing bestows supernatural Shaman powers on a bullied teenager. When his lifelong tormentors pull a prank that kills someone he loves, he uses his powers for revenge and goes on a bloody rampage to…
8
Bloodline Killer (2024)
★ 6/10Also horror and thriller
Moira Cole endeavors to rebuild her shattered life after her family's murder at the hands of her deranged and obsessed cousin.
9
Containment (2015)
★ 5.9/10Also thriller and horror
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?
10
You'll Never Find Me (2024)
★ 6.1/10Also horror and thriller
Patrick, a strange and lonely resident, lives in a mobile home at the back of an isolated caravan park. After a violent thunderstorm erupts, a mysterious young woman appears at his door, seeking shelter from the…
11
Whisper (2007)
★ 6.3/10Also horror and thriller
Sinister things begin happening to kidnappers who are holding a young boy for ransom in a remote cabin.
12
Vicious (2025)
★ 6/10Also horror and thriller
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.
13
Dangerous Game: The Legacy Murders (2022)
★ 6/10Also thriller and horror
A family reunion at a remote mansion takes a lethal turn when they are trapped inside and forced to play a deadly survival game where only one will make it out alive.
14
Abandoned (2022)
★ 5.8/10Also horror and thriller
After a young couple moves into a remote farmhouse with their infant son, the woman's struggles with postpartum psychosis begin to intensify... as the house reveals secrets of its own.
15
The Evil (1978)
★ 5.8/10Also thriller and horror
Shortly after moving into a dark, brooding mansion, a psychologist and his co-workers are terrorized by a horrible evil being.
16
Z (2019)
★ 6.5/10Also horror and thriller
A family find themselves terrorized by their eight-year-old son's imaginary friend.
17
Shades of Desire (2023)
★ 6.5/10Also horror and thriller
After her twin sister Aubrey goes missing, Jennifer uncovers the scandalous, secret double-life that Aubrey leads - and that has put both of them in danger.
18
Frank and Penelope (2022)
★ 7.3/10Also thriller and horror
A tale of love and violence when a man on his emotional last legs finds a savior seductively dancing in a run-down strip club. And a life most certainly headed off a cliff suddenly becomes redirected - as everything is…
19
The Hunt (2020)
★ 6.7/10Also thriller and horror
Twelve strangers wake up in a clearing. They don't know where they are—or how they got there. In the shadow of a dark internet conspiracy theory, ruthless elitists gather at a remote location to hunt humans for sport…
20
Maniac (1963)
★ 6.2/10Also horror and thriller
When a stranger enters a quiet, country town and is seduced by a sensuous married woman he unwittingly finds himself at the centre of a storm of sexual guilt and murder.