Movies like Who Knows? (2024)
The best movies like Who Knows? (2024) are The Deadly Affair (1967), The Ritual Killer (2023) and Triage (2009). If Who Knows? hooked you with its thriller and mystery, these 30 similar films are what to watch next, and every pick says why it matches.
Quick picks
- Highest ratedThe Trial (1962)7.4/10 from 597 votes
- Newest180 (2026)Released 2026
The Deadly Affair (1967)
Charles Dobbs is a British secret agent investigating the apparent suicide of Foreign Office official Samuel Fennan. Dobbs suspects that Fennan's wife, Elsa, a survivor of a Nazi Germany extermination camp, might have some clues, but other officials want Dobbs to drop the case. So Dobbs hires a retiring inspector, Mendel, to quietly make inquiries. Dobbs isn't at all sure as there are a number of anomalies that simply can't be explained away. Dobbs is also having trouble at home with his errant wife, whom he very much loves, having frequent affairs. He's also pleased to see an old friend, Dieter Frey, who he recruited after the war. With the assistance of a colleague and a retired policeman, Dobbs tries to piece together just who is the spy and who in fact assassinated Fennan.
Why it matches: Recommended by TMDB viewers · both thriller & mystery
Popcorn FlickMovies like thisThe Ritual Killer (2023)
Unable to process the death of his daughter, Detective Boyd embarks on a hunt for a serial killer who murders according to a brutal tribal ritual: Muti. The only person who can help Boyd is Professor Mackles, an anthropologist who hides an unspeakable secret. The line between sanity and madness thins as Boyd goes deeper into the killer’s world.
Why it matches: Recommended by TMDB viewers · both mystery & thriller
SnoozefestMovies like thisTriage (2009)
The wife of a photojournalist sets out to discover why he came home from a recent assignment without his colleague.
Why it matches: Recommended by TMDB viewers · both drama & thriller
Popcorn FlickMovies like thisRighteous Kill (2008)
Two veteran New York City detectives work to identify the possible connection between a recent murder and a case they believe they solved years ago; is there a serial killer on the loose, and did they perhaps put the wrong person behind bars?
Why it matches: Recommended by TMDB viewers · both thriller & mystery
SnoozefestMovies like thisThe Good Doctor (2011)
Dr. Martin Blake, who has spent his life looking for respect, meets an 18-year-old patient named Diane, suffering from a kidney infection, and gets a much-needed boost of self-esteem. However, when her health starts improving, Martin fears losing her, so he begins tampering with her treatment, keeping Diane sick and in the hospital right next to him.
Why it matches: Recommended by TMDB viewers · both drama & thriller
Popcorn FlickMovies like thisEndless Night (1972)
Shiftless dreamer Michael Rogers fantasizes about a lifestyle above his means and marries a wealthy, young girl who just came of age. They hire a famous architect to build their dream home amidst a series of suspicious incidents. The spouse has dark intentions toward his naive, inexperienced bride. Secrets from his past and sinister ties to their house guest Greta lead to a terrible turn of unexpected events.
Why it matches: Recommended by TMDB viewers · both mystery & thriller
Popcorn FlickMovies like thisShimmer Lake (2017)
Shot in reverse day-by-day through a week—a local sheriff embarks on a quest to unlock the mystery of three small-town criminals and a bank heist gone wrong.
Why it matches: Recommended by TMDB viewers · both thriller & drama
Popcorn FlickMovies like thisSuburbicon (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
SnoozefestMovies like this180 (2026)
When an unexpected road rage incident puts his son in critical condition, an enraged father spirals down a dark path of emotional turmoil and vengeance.
Why it matches: Recommended by TMDB viewers · both thriller & drama
SnoozefestMovies like thisThe Infernal Machine (2022)
Reclusive and controversial author Bruce Cogburn is drawn out of hiding by an obsessive fan, forcing the novelist to confront a past that he thought he could escape, and to account for events set in motion by his bestseller decades earlier. Cogburn's search for who is behind the manipulation and mental torment he encounters leads to an emotional roller-coaster ride full of fear and danger, where things are not always as clear as they seem to be, and where past deeds can have dire consequences.
Why it matches: Recommended by TMDB viewers · both thriller & mystery
Popcorn FlickMovies like thisCleaner (2007)
Single father and former cop Tom Cutler has an unusual occupation: he cleans up death scenes. But when he's called in to sterilize a wealthy suburban residence after a brutal shooting, Cutler is shocked to learn he may have unknowingly erased crucial evidence, entangling himself in a dirty criminal cover-up.
Why it matches: Recommended by TMDB viewers · both thriller & mystery
Popcorn FlickMovies like thisInside Man (2023)
Based on true events. A disgraced police detective seeking redemption goes undercover to expose a violent crime syndicate. But as he sinks deeper into the mob, the price for absolution may be higher than he can afford.
Why it matches: Recommended by TMDB viewers · both thriller & drama
Popcorn FlickMovies like thisBarron's Cove (2025)
When his young son is viciously murdered by a classmate, a grieving father with a history of violence kidnaps the child responsible, igniting a frenzied manhunt fueled by a powerful politician -- the father of the kidnapped boy.
Why it matches: Recommended by TMDB viewers · both thriller & drama
Worth the HypeMovies like thisThe Black Book (2023)
After his son is wrongly accused of kidnapping, a deacon who has just lost his wife takes matters into his own hands and fights a crooked police gang to clear him.
Why it matches: Recommended by TMDB viewers · both mystery & thriller
Popcorn FlickMovies like thisAll the Devils Are Here (2025)
After a heist, four criminals lay low in a remote safehouse, waiting for orders. As paranoia builds, one thing becomes clear — the real threat may not be outside, but among them.
Why it matches: Recommended by TMDB viewers · both mystery & thriller
Popcorn FlickMovies like thisThe Public Eye (1992)
A crime photographer gets involved in a conspiracy.
Why it matches: Recommended by TMDB viewers · both drama & thriller
Popcorn FlickMovies like thisThe Engineer (2023)
As Israel is rocked by a series of terrorist bombings, a US senator's daughter is killed in one bloody explosion. Now, ex-Mossad agent Etan must lead an elite, covert team of agents and mercenaries to find the man responsible—the elusive “Engineer.” Can they find and destroy the madman before more innocent lives are lost?
Why it matches: Recommended by TMDB viewers · both thriller & mystery
SnoozefestMovies like thisStowaway (2022)
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.
Why it matches: Recommended by TMDB viewers · both mystery & thriller
Popcorn FlickMovies like thisThe Devil You Know (2022)
Once-incarcerated Marcus Cowans is trying to turn over a new leaf with the support of his loving family. Upon discovering that one of his brothers may have been involved in a horrific crime, Marcus grapples with the limits of brotherhood and loyalty. He and his family, increasingly weary of the justice system’s failings, end up in the crosshairs of a seasoned but jaded detective.
Why it matches: Recommended by TMDB viewers · both thriller & drama
Popcorn FlickMovies like thisBlood Ties (2013)
Two brothers, on either side of the law, face off over organized crime in Brooklyn during the 1970s.
Why it matches: Recommended by TMDB viewers · both thriller & drama
Popcorn FlickMovies like thisPooka (2023)
A retired detective moves to a rural village in Ireland where he discovers numerous missing children. He takes the investigation into his own hands due to the absence of police.
Why it matches: Similar story and style · both thriller & drama
INTERSTICE (2022)
Two years after the tragic death of Zack Lorenzo's best friend, Andrew Ridge, Zack attends a magician show. During the spectacle, Zack becomes part of the show, and the Magician conjures a tremendous shift in Zack's perspective on the horrific incident of his past.
Why it matches: Similar story and style · both thriller & mystery
Spiral of Silence (2019)
Sebastián, a psychology student, is accused by his faculty of causing his ex-girlfriend's suicide. While trying to prove his innocence, a deep sense of guilt consumes him and prevents him from defending himself.
Why it matches: Similar story and style · both drama & thriller
No More Inner Voice (2021)
After his money is stolen, a young man must decide whether or not he will steal to afford his dying grandfather's medicine.
Why it matches: Similar story and style · both drama & thriller
I Walked with a Zombie (1943)
A nurse in the Caribbean turns to voodoo in hopes of curing her patient, a mindless woman whose husband she's fallen in love with.
Why it matches: Similar story and style · both mystery & drama
Popcorn FlickMovies like thisThe Trial (1962)
Arrested for an unnamed crime, Josef K. is trapped in a surreal bureaucratic maze where justice is unknowable and guilt is assumed.
Why it matches: Similar story and style · both drama & mystery
Worth the HypeMovies like thisGuilty at 17 (2014)
A teenager becomes overwhelmed with guilt after her lies to support a friend's claim of sexual assault lead to the accused teacher's suicide.
Why it matches: Similar story and style · both drama & mystery
Edge of Doom (1950)
A Catholic priest finds himself investigating the murder of his colleague.
Why it matches: Similar story and style · both drama & thriller
Onaayum Aattukkuttiyum (2013)
Chandru, a medical student, saves a dying man by operating him, but soon, the police are knocking on his doors for helping Wolf, a paid killer. And, worse, they want him to kill Wolf.
Why it matches: Similar story and style · both mystery & thriller
A Master Builder (2014)
A successful, ego-maniacal architect who has spent a lifetime bullying his wife, employees and mistresses wants to make peace as his life approaches its final act.
Why it matches: Similar story and style · both drama
Like Who Knows? and something else?
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Frequently asked questions
What are the best movies like Who Knows??
The closest matches to Who Knows? are The Deadly Affair (1967), The Ritual Killer (2023) and Triage (2009). Below are 27 more, each with the reason it matches.
What should I watch after Who Knows??
Start with The Deadly Affair (1967), the closest match to Who Knows?.
What is the highest-rated movie like Who Knows??
The Trial (1962), rated 7.4/10 by 597 TMDB users.
What is the newest movie like Who Knows??
180 (2026) is the most recent release on this list.
Are there English movies like Who Knows??
Yes: The Deadly Affair (1967), The Ritual Killer (2023) and Triage (2009).
How are movies similar to Who Knows? chosen?
First come films that Trakt’s viewers watch alongside Who Knows?, then TMDB’s recommendations and films it rates as similar in story and genre. Each pick says which signal put it there.