Watch Mystery Movies Online, List of 2020 Mystery Films

Knives Out (2019)
Drama, Comedy, Thriller, Crime, Mystery
When renowned crime novelist Harlan Thrombey is found dead at his estate just after his 85th birthday, the inquisitive and debonair Detective Benoit Blanc is mysteriously enlisted to investigate. From Harlan's dysfunctional family to his devoted staff, Blanc sifts through a web of red herrings and self-serving lies to uncover the truth behind Harlan's untimely death.
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Knives Out

Harry Potter and the Order of the Phoenix (2007)
Adventure, Fantasy, Mystery
Returning for his fifth year of study at Hogwarts, Harry is stunned to find that his warnings about the return of Lord Voldemort have been ignored. Left with no choice, Harry takes matters into his own hands, training a small group of students – dubbed 'Dumbledore's Army' – to defend themselves against the dark arts.
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Harry Potter and the Order of the Phoenix

The Maze Runner (2014)
Action, Thriller, Science Fiction, Mystery
Set in a post-apocalyptic world, young Thomas is deposited in a community of boys after his memory is erased, soon learning they're all trapped in a maze that will require him to join forces with fellow “runners” for a shot at escape.
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The Maze Runner

Get Out (2017)
Horror, Thriller, Mystery
Chris and his girlfriend Rose go upstate to visit her parents for the weekend. At first, Chris reads the family's overly accommodating behavior as nervous attempts to deal with their daughter's interracial relationship, but as the weekend progresses, a series of increasingly disturbing discoveries lead him to a truth that he never could have imagined.
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Get Out

Gone Girl (2014)
Drama, Thriller, Mystery
With his wife's disappearance having become the focus of an intense media circus, a man sees the spotlight turned on him when it's suspected that he may not be innocent.
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Gone Girl

Arrival (2016)
Drama, Science Fiction, Mystery
Taking place after alien crafts land around the world, an expert linguist is recruited by the military to determine whether they come in peace or are a threat.
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Arrival

Brahms: The Boy II (2020)
Horror, Thriller, Mystery
After a family moves into the Heelshire Mansion, their young son soon makes friends with a life-like doll called Brahms.
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Brahms: The Boy II

2001: A Space Odyssey (1968)
Adventure, Science Fiction, Mystery
Humanity finds a mysterious object buried beneath the lunar surface and sets off to find its origins with the help of HAL 9000, the world's most advanced super computer.
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2001: A Space Odyssey

The Man Who Knew Too Much (1956)
Thriller, Crime, Mystery
A widescreen, Technicolor remake by Hitchcock of his 1934 film of the same title. A couple vacationing in Morocco with their young son accidentally stumble upon an assassination plot. When the child is kidnapped to ensure their silence, they have to take matters into their own hands to save him.
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The Man Who Knew Too Much

Gattaca (1997)
Thriller, Science Fiction, Mystery, Romance
In a future society in the era of indefinite eugenics, humans are set on a life course depending on their DNA. Young Vincent Freeman is born with a condition that would prevent him from space travel, yet is determined to infiltrate the GATTACA space program.
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Gattaca

Memento (2000)
Thriller, Mystery
Leonard Shelby is tracking down the man who raped and murdered his wife. The difficulty of locating his wife's killer, however, is compounded by the fact that he suffers from a rare, untreatable form of short-term memory loss. Although he can recall details of life before his accident, Leonard cannot remember what happened fifteen minutes ago, where he's going, or why.
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Memento

Dial M for Murder (1954)
Drama, Thriller, Crime, Mystery
An ex-tennis pro carries out a plot to have his wife murdered after discovering she is having an affair, and assumes she will soon leave him for the other man anyway. When things go wrong, he improvises a new plan—to frame her for murder instead.
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Dial M for Murder

Se7en (1995)
Thriller, Crime, Mystery
Two homicide detectives are on a desperate hunt for a serial killer whose crimes are based on the "seven deadly sins" in this dark and haunting film that takes viewers from the tortured remains of one victim to the next. The seasoned Det. Sommerset researches each sin in an effort to get inside the killer's mind, while his novice partner, Mills, scoffs at his efforts to unravel the case.
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Se7en

Shooter (2007)
Drama, Action, Thriller, Crime, Mystery
A marksman living in exile is coaxed back into action after learning of a plot to kill the president. Ultimately double-crossed and framed for the attempt, he goes on the run to track the real killer and find out who exactly set him up, and why??
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Shooter

Prometheus (2012)
Adventure, Science Fiction, Mystery
A team of explorers discover a clue to the origins of mankind on Earth, leading them on a journey to the darkest corners of the universe. There, they must fight a terrifying battle to save the future of the human race.
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Prometheus

The Grudge (2020)
Horror, Mystery
After a young mother murders her family in her own house, a detective attempts to investigate the mysterious case, only to discover that the house is cursed by a vengeful ghost. Now targeted by the demonic spirits, the detective must do anything to protect herself and her family from harm.
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The Grudge

Identity (2003)
Thriller, Mystery
Complete strangers stranded at a remote desert motel during a raging storm soon find themselves the target of a deranged murderer. As their numbers thin out, the travelers begin to turn on each other, as each tries to figure out who the killer is.
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Identity

Us (2019)
Horror, Thriller, Mystery
Husband and wife Gabe and Adelaide Wilson take their kids to their beach house expecting to unplug and unwind with friends. But as night descends, their serenity turns to tension and chaos when some shocking visitors arrive uninvited.
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Us

Ready or Not (2019)
Horror, Comedy, Thriller, Mystery
A bride's wedding night takes a sinister turn when her eccentric new in-laws force her to take part in a terrifying game.
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Ready or Not

Scooby-Doo (2002)
Adventure, Comedy, Mystery
The Mystery Inc. gang have gone their separate ways and have been apart for two years, until they each receive an invitation to Spooky Island. Not knowing that the others have also been invited, they show up and discover an amusement park that affects young visitors in very strange ways.
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Scooby-Doo

Hereditary (2018)
Horror, Thriller, Mystery
When Ellen, the matriarch of the Graham family, passes away, her daughter’s family begins to unravel cryptic and increasingly terrifying secrets about their ancestry.
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Hereditary

National Treasure (2004)
Adventure, Action, Thriller, Mystery
Modern treasure hunters, led by archaeologist Ben Gates, search for a chest of riches rumored to have been stashed away by George Washington, Thomas Jefferson and Benjamin Franklin during the Revolutionary War. The chest's whereabouts may lie in secret clues embedded in the Constitution and the Declaration of Independence, and Gates is in a race to find the gold before his enemies do.
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National Treasure

Donnie Darko (2001)
Fantasy, Drama, Mystery
After narrowly escaping a bizarre accident, a troubled teenager is plagued by visions of a large bunny rabbit that manipulates him to commit a series of crimes.
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Donnie Darko

Scoob! (2020)
Adventure, Animation, Comedy, Mystery, Family
Scooby-Doo and the Mystery Inc. gang team-up with various Hanna-Barbera characters to save the world from the evil Dick Dastardly.
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Scoob!

Citizen Kane (1941)
Drama, Mystery
Newspaper magnate, Charles Foster Kane is taken from his mother as a boy and made the ward of a rich industrialist. As a result, every well-meaning, tyrannical or self-destructive move he makes for the rest of his life appears in some way to be a reaction to that deeply wounding event.
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Citizen Kane

The Lighthouse (2019)
Fantasy, Drama, Horror, Mystery
Two lighthouse keepers try to maintain their sanity while living on a remote and mysterious New England island in the 1890s.
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The Lighthouse

Twelve Monkeys (1995)
Thriller, Science Fiction, Mystery
In the year 2035, convict James Cole reluctantly volunteers to be sent back in time to discover the origin of a deadly virus that wiped out nearly all of the earth's population and forced the survivors into underground communities. But when Cole is mistakenly sent to 1990 instead of 1996, he's arrested and locked up in a mental hospital. There he meets psychiatrist Dr. Kathryn Railly, and patient Jeffrey Goines, the son of a famous virus expert, who may hold the key to the mysterious rogue group, the Army of the 12 Monkeys, thought to be responsible for unleashing the killer disease.
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Twelve Monkeys

mother! (2017)
Drama, Horror, Mystery
A couple's relationship is tested when uninvited guests arrive at their home, disrupting their tranquil existence.
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mother!

Murder Mystery (2019)
Action, Comedy, Crime, Mystery
After attending a gathering on a billionaire's yacht during a European vacation, a New York cop and his wife become prime suspects when he's murdered.
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Murder Mystery

Annabelle: Creation (2017)
Horror, Thriller, Mystery
Several years after the tragic death of their little girl, a doll maker and his wife welcome a nun and several girls from a shuttered orphanage into their home, soon becoming the target of the doll maker's possessed creation—Annabelle.
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Annabelle: Creation

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