Popular Mystery Movies on Plex - Page 25

A Breed Apart

2025

A Breed Apart

2025
4.8
When Violet accepts an invitation to a private island with some of the world's most famous social influencers, she expects a weekend of unrivaled viral opportunity. She soon becomes part of her own horrific reality show when the guests are pitted against each other to capture the island's legendary man-eating dogs before they become victims of the monstrous canines.
In the Deep Woods

1992

In the Deep Woods

1992
5.3
A friend of Joanna has been killed by a serial killers who leaves the bodies in the woods. A strange guy who says is a private detective: Joanna begins to fear he might be the killer.
The Cry of the Owl

2009

The Cry of the Owl

2009
5.7
Fleeing New York City, a failed marriage and a fragile mental history, artist Robert Forrester moves to small-town Pennsylvania. There he becomes fascinated with the simple domesticity of a beautiful neighbor, watching her through the windows of her home --- until she invites him in for coffee. He is drawn into a relationship with the young woman whose boyfriend goes missing; Robert becomes a murder suspect, gradually sensing he is the target of a larger plot.
Four Flies on Grey Velvet

1971

Four Flies on Grey Velvet

1971
6.5
Roberto, a drummer in a rock band, keeps receiving weird phone calls and being followed by a mysterious man. One night he manages to catch up with his persecutor and tries to get him to talk but in the ensuing struggle he accidentally stabs him. He runs away, but he understands his troubles have just begun when the following day he receives an envelope with photos of him killing the man. Someone is killing all his friends and trying to frame him for the murders.
Open Grave

2013

Open Grave

2013
6
A man awakes-- without memory -- in a pit full of bodies and must figure out if the people who rescued him are the killers, or if he is the murderer.
Number Seventeen

1932

Number Seventeen

1932
5.5
A gang of jewel thieves hides out in an abandoned London house after a robbery, unaware that a detective is among them in disguise.
The King and Four Queens

1956

The King and Four Queens

1956
5.5
Opportunistic con man Dan Kehoe ingratiates himself with the cantankerous mother of four outlaws and their beautiful widows in order to find their hidden gold.
The Dark

2005

The Dark

2005
5.7
In an attempt to pull her family together, Adèlle travels with her young daughter Sarah to Wales to visit her father. The morning after they arrive, Sarah mysteriously vanishes in the ocean. Not long after, a little girl bearing a striking resemblance to their missing daughter reveals that she has retuned from the dead — and that Sarah has been taken to the Welsh underworld.
Infinitum: Subject Unknown

2021

Infinitum: Subject Unknown

2021
5.4
Jane is the subject of a twisted science experiment where she is placed in a parallel world and is forced to find a way to either alter her reality or be stuck in a time-loop, destined to repeat the same test over and over again, with no memory of her doing it before. But with each 'reset' she starts to retain fragments of memory. With clues pointing to the mysterious Wytness Quantum Research Centre, she tries to find a way out. (The film was shot entirely on an iPhone during the UK’s first lockdown.)
Roswell UFO Conspiracy: Unlocked

2020

Roswell UFO Conspiracy: Unlocked

2020
The most famous UFO case of all time is the alleged UFO crash in the desert of Roswell, New Mexico in 1947. Did humanity make its first contact with alien life that dark starry night?
The Substitute 2: School's Out

1998

The Substitute 2: School's Out

1998
6.1
When teacher Randall Thomasson is killed during a carjacking, an unexpected visitor shows up at his funeral - his estranged brother, Karl Thomasson. An ex-Green Beret turned mercenary, Karl signs on as a new substitute teacher in order to investigate Randall's murder.
The Shout

1978

The Shout

1978
6
A traveller by the name of Crossley forces himself upon a musician and his wife in a lonely part of Devon, and uses the aboriginal magic he has learned to displace his host.
Do You Fear What I Fear?

2025

Do You Fear What I Fear?

2025
9
When Claire lands her dream job in the city, she thinks she’s finally escaped her picture-perfect Christmas hometown. But her fresh start turns chilling when eerie holiday decorations begin appearing in her apartment… each one a message from someone who knows her too well. Who is the dangerous ‘Secret Santa’ watching her? Is it her charming new neighbor? The ex who won’t let go? To find out, Claire will have to turn the tables and set a trap of her own.
Who Are You People

2023

Who Are You People

2023
5.7
After trying and failing to seduce her teacher, 16-year-old Alex runs away from her boarding school. Trying to seek out the biological father her mother has always kept hidden from her.
Insectula!

2015

Insectula!

2015
6
A giant alien mosquito-type insect is drawn to earth from the CO2 pollution in search of blood. Del, a government agent, loses loved ones to the creature and is on a personal vendetta while the Dr. Kempler is captivated by it and attempts to help the creature cleanse the earth.
Stowaway

2022

Stowaway

2022
6.1
A tenacious party girl fights to survive after three thieves commandeer her luxury yacht. Unable to escape and trapped on the yacht at high seas, the prey becomes the hunter as she turns the tables on the intruders and takes matters into her own hands.
Your Vice Is a Locked Room and Only I Have the Key

1972

Your Vice Is a Locked Room and Only I Have the Key

1972
6.5
Oliviero is a drunk, burned-out writer who amuses himself by hosting orgies at his grand country manor and humiliating his wife Irina. When a number of women are murdered in grisly fashion, Oliviero becomes a prime suspect.
Enigma

2019

Enigma

2019
Two Detectives are searching for clues to some very unique murders. A close friend finding her faith in search to clear her friend and a very bad man make up the main characters to this thriller.
We Have Always Lived in the Castle

2019

We Have Always Lived in the Castle

2019
5.5
In Shirleyville, Vermont, during the sixties, sisters Merricat and Constance, along with their ailing uncle Julian, confined to a wheelchair, live isolated in a big mansion located on the hill overlooking the town, tormented by the memories of a family tragedy occurred six years ago. The arrival of cousin Charles will threaten the fragile equilibrium of their minds, haunted by madness, fear and superstition.
The House on Telegraph Hill

1951

The House on Telegraph Hill

1951
6.4
Concentration camp survivor Victoria Kowelska finds herself involved in mystery, greed, and murder when she assumes the identity of a dead friend in order to gain passage to America.