Movies like What They Don't Know (2026)
The best movies like What They Don't Know (2026) are Rogue Agent (2022), Black Widow (1987) and Chief of Station (2024). If What They Don't Know hooked you with its thriller, these 20 similar films are what to watch next, and every pick says why it matches.
Quick picks
- Highest ratedSuccubus (2024)8.3/10 from 279 votes
- NewestTyler Perry's Duplicity (2025)Released 2025
Rogue Agent (2022)
Conman Robert Freegard poses as an undercover MI5 agent and kidnaps countless victims amidst a high-stakes manhunt, until the woman who fell for him brings him to justice.
Why it matches: Recommended by TMDB viewers · both thriller
Popcorn FlickMovies like thisBlack Widow (1987)
Federal agent Alexandra Barnes believes that Catherine Petersen is a serial killer who marries rich men and then murders them for their money. But since Catherine is seemingly a master of disguise and has multiple identities, Alexandra can't prove anything with conventional detective work. With no other option, she goes undercover, pursuing the same man as Catherine, and hoping that Catherine will slip up and reveal her true identity.
Why it matches: Recommended by TMDB viewers · both thriller
Popcorn FlickMovies like thisChief of Station (2024)
After learning that the death of his wife was not an accident, a former CIA Station Chief is forced back into the espionage underworld, teaming up with an adversary to unravel a conspiracy that challenges everything he thought he knew.
Why it matches: Recommended by TMDB viewers · both thriller
Popcorn FlickMovies like thisSuccubus (2024)
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 could have ever imagined.
Why it matches: Recommended by TMDB viewers · both thriller
Absolute CinemaMovies like thisTyler Perry's Duplicity (2025)
High-powered attorney Marley faces her most personal case yet when she is tasked with uncovering the truth behind the murder of her best friend Fela’s husband. With the help of her boyfriend – a former cop turned private investigator – Marley’s search for what really happened leads her down a treacherous maze of deception and betrayal.
Why it matches: Recommended by TMDB viewers · both thriller
Popcorn FlickMovies like thisHeatwave (2022)
A woman's life takes an unexpected turn when she falls for her boss's wife. She must soon defend herself as she becomes entangled in a web of malice.
Why it matches: Recommended by TMDB viewers · both thriller
Popcorn FlickMovies like thisBad Sister (2015)
As a top student at St. Adeline's Catholic Boarding School, Zoe senses that something is not quite right about the school's new nun-- a sense proven to be true when it is revealed the "good' nun is an imposter with a fatal attraction to Zoe's brother.
Why it matches: Recommended by TMDB viewers · both thriller
Popcorn FlickMovies like thisShadow Dancer (2012)
In 1990s Belfast, a woman is forced to betray all she believes in for the sake of her son.
Why it matches: Recommended by TMDB viewers · both thriller
Popcorn FlickMovies like thisHider in the House (1989)
A deranged man hides in the attic of a new house and becomes obsessed with the unsuspecting family that moves in.
Why it matches: Recommended by TMDB viewers · both thriller
Popcorn FlickMovies 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
Popcorn FlickMovies like thisThe MacKintosh Man (1973)
A member of British Intelligence assumes a fictitious criminal identity and allows himself to be caught, imprisoned, and freed in order to infiltrate a spy organization and expose a traitor; only, someone finds him out and exposes him to the gang...
Why it matches: Recommended by TMDB viewers · both thriller
Popcorn FlickMovies like thisInfidelity in Suburbia (2017)
With her husband away at work, and her son at school, Laura dreams of a home-renovation project to supplant her restless days. Elliott, her irresistibly hot private contractor, soon fulfills her more forbidden dreams.
Why it matches: Recommended by TMDB viewers · both thriller
Popcorn FlickMovies like thisShades of Desire (2023)
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.
Why it matches: Recommended by TMDB viewers · both thriller
Popcorn FlickMovies like thisAddicted (2014)
A gallerist risks her family and flourishing career when she enters into an affair with a talented painter and slowly loses control of her life.
Why it matches: Recommended by TMDB viewers · both thriller
SnoozefestMovies like thisBackstabbing for Beginners (2018)
An idealistic young employee at the U.N. investigates the grisly murder of his predecessor – and uncovers a vast global conspiracy that may involve his own boss.
Why it matches: Recommended by TMDB viewers · both thriller
Popcorn FlickMovies like thisBlackwater Lane (2024)
An American school teacher in England drives past an abandoned car late one night, unaware that the driver was the victim of a murder. As she comes to terms with the realization, seemingly supernatural events start to affect the gothic manor she lives in with her husband.
Why it matches: Recommended by TMDB viewers · both thriller
Popcorn FlickMovies like thisDead of Winter (1987)
A fledgling actress is lured to a remote mansion for a screen-test, soon discovering she is actually a prisoner in the middle of a blackmail plot.
Why it matches: Recommended by TMDB viewers · both thriller
Popcorn FlickMovies like thisSightless (2020)
After an attack renders her blind, Ellen withdraws from the world to recover. But soon she plunges into paranoia, unable to convince anyone that her assailant has returned to terrorize her by hiding in plain sight.
Why it matches: Recommended by TMDB viewers · both thriller
Popcorn FlickMovies like thisIn Secret (2014)
In 1860s Paris, a young woman, Therese, is trapped in a loveless marriage to the sickly Camille by her domineering aunt, Madame Raquin. She spends her days behind the counter of a small shop and her evenings watching Madame play dominos with an eclectic group. After she meets her husband’s alluring friend, Laurent, she embarks on an illicit affair that leads to tragic consequences. Based on Emile Zola’s novel, Thérèse Raquin.
Why it matches: Recommended by TMDB viewers · both thriller
Popcorn FlickMovies like thisOur Kind of Traitor (2016)
A young Oxford academic and his attorney girlfriend holiday in Morocco. They bump into a Russian millionaire who owns a peninsula and a diamond watch. He wants a game of tennis. What else he wants propels the lovers on a tortuous journey to the City of London and its unholy alliance with Britain's intelligence establishment, to Paris and the Alps.
Why it matches: Recommended by TMDB viewers · both thriller
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Frequently asked questions
What are the best movies like What They Don't Know?
The closest matches to What They Don't Know are Rogue Agent (2022), Black Widow (1987) and Chief of Station (2024). Below are 17 more, each with the reason it matches.
What should I watch after What They Don't Know?
Start with Rogue Agent (2022), the closest match to What They Don't Know.
What is the highest-rated movie like What They Don't Know?
Succubus (2024), rated 8.3/10 by 279 TMDB users.
What is the newest movie like What They Don't Know?
Tyler Perry's Duplicity (2025) is the most recent release on this list.
Are there English movies like What They Don't Know?
Yes: Rogue Agent (2022), Black Widow (1987) and Chief of Station (2024).
How are movies similar to What They Don't Know chosen?
First come films that Trakt’s viewers watch alongside What They Don't Know, then TMDB’s recommendations and films it rates as similar in story and genre. Each pick says which signal put it there.