From Dashiell Hammett’s classic crime caper in The Thin Man to Rian Johnson’s modern twist machine in Knives Out, here are 10 whodunit movies built to keep you guessing until the final reveal.
Who done it? That question isn’t just decoration in a whodunit—it’s the engine. Unlike many mysteries that drag suspects into the story one by one, whodunnits put the cast of characters on the stage early, then work through the clues so the audience can play along, twist after twist after twist.
Some of these films lean funny. Others go darker. All of them, though, are designed for the same delicious kind of attention—where the “who” feels like it could tip at any moment.
The Thin Man (1934)
In The Thin Man, the movie’s reputation still rides on the effortless chemistry between William Powell and Myrna Loy as Nick and Nora Charles. But the whodunit at the center of it still lands with force—especially because the suspects are introduced early and the mystery stays sharp.
The crime setup is straightforward and grim. The titular “Thin Man” is inventor Clyde (Edward Ellis). He goes missing after confronting his mistress about stolen money. That’s when former detective Nick and his socialite wife Nora get pulled in. and the bodies begin to pile up. The questions keep tightening: Is Clyde a suspect or a victim?. Who caused his disappearance—and why?.
There’s a long list of suspects, and Nick gathers them all in the finale for a classic whodunit wrap-up. The film’s light touch makes the brutality feel streamlined, and its mystery remains one of the most fun murder investigations ever put on screen.
And Then There Were None (1945)
Agatha Christie’s whodunits don’t just endure—they replicate. One major reason is that the structure is so clean: suspects are trapped together, and the answer keeps moving out of reach.
And Then There Were None—directed by René Clair—collects a group of strangers in an island mansion and then kills them off one by one. Eight guests are invited by a mysterious host named U.N. Owen to a manor on a remote island. The only shared thread?. Each guest (and the two newly hired servants) has been accused of prior murders.
As the guests start to meet their own demises, the survivors turn on one another, trying to identify who the real killer is among them. The set-up has become iconic, influencing dozens of later stories, and the mystery keeps you guessing until the last minute.
The House of Fear (1945)
Sherlock Holmes is often associated with deduction, not whodunit mechanics—but The House of Fear flips that expectation. Basil Rathbone is one of the most associated Holmes actors ever. appearing in fourteen feature films as the detective alongside Nigel Bruce as Watson. Most of those entries don’t use the whodunit template. This one does.
The film is based on Arthur Conan Doyle’s short story The Five Orange Pips. Holmes visits a Scottish castle where a group of men known collectively as the Good Comrades live together. Then the deaths begin. Each man dies after receiving an envelope of orange pips.
An insurance agent believes one of the men is killing the others so he can collect a larger payout. The story may not rank as the greatest of Rathbone’s Holmes outings. but The House of Fear is still a classic Sherlock mystery—an enthralling whodunit with a built-in pattern that keeps tightening around its suspects.
The Last of Sheila (1973)
Not every whodunit comes from a book or short story. The Last of Sheila is one of the few entries here that isn’t based on earlier material. It was inspired by real-life scavenger hunts that co-writers Anthony Perkins and Stephen Sondheim had often arranged for their celebrity friends.
The plot starts with a yacht pleasure cruise around the Mediterranean. A producer friend invites a group of Hollywood guests, and the night begins as a mystery game that seems to allude to the death of the producer’s wife a year prior.
Then the producer turns up dead. After that, the guests shift from one puzzle to an entirely new whodunit game. The film leans hard on ensemble energy. with a cast that includes Dyan Cannon. James Coburn. James Mason. and Raquel Welch. Perkins and Sondheim’s script also draws the mystery into the sordid secrets of the Hollywood elite—where fun game rules collide with real danger.
Murder on the Orient Express (1974)
If whodunits are about suspects and motives, Murder on the Orient Express is about suspects with nowhere to go. Sidney Lumet’s adaptation of Agatha Christie’s story remains a benchmark, built around a star-studded ensemble led by Albert Finney as Belgian detective Poirot.
The cast includes Lauren Bacall, Sean Connery, Anthony Perkins, Vanessa Redgrave, and Ingrid Bergman in an Oscar-winning performance. It’s also the most stylishly produced film version of Christie’s murder mystery that has been adapted multiple times for film and television—and it still stands apart.
The setting does the work. On the titular train. Poirot finds himself among international travelers. and one of them is murdered in the middle of the night. Poirot discovers that every passenger on the train had a motive for murdering the victim. That forces the mystery forward until the train reaches its destination—when the culprit among the suspects finally has to be identified.
Christie herself praised the film, with one exception: she criticized that Poirot’s mustache wasn’t fabulous enough.
Clue (1985)
Clue takes the whodunit skeleton and adds comedy until the whole thing becomes a riot. It’s based on the beloved board game, and it comes with an unusually messy behind-the-scenes history: it was originally developed by John Landis, then writer Jonathan Lynn took over as director.
The movie also included three different endings. All of those endings were eventually included when it was released on home media.
At launch, Clue received a mixed response from critics and failed at the box office, but it has since built a cult classic reputation thanks to its talented cast and its perfectly hilarious mystery.
The premise follows the board game setup: a group of strangers is invited to a manor. given color-coordinated code names. and confronted by Mr. Boddy (Lee Ving), who holds blackmail material on all of them. Boddy quickly becomes a dead body. and the strangers must decide which of them was capable of the murder before the police arrive.
The casting is described as pitch perfect across the board—from Mr. Green (Michael McKean) to Mrs. White (Madeline Kahn)—but the MVP is Tim Curry as the butler Wadsworth, whose manic sleuthing only intensifies as the plot gets ever more convoluted.
Scream (1996)
Scream may be horror, but it’s also a whodunit in its own modern language. Wes Craven’s franchise is both one of the most iconic horror series of all time and the longest-running modern whodunit franchise.
It’s also built on meta satire of slasher conventions—except the knife-wielding killer, Ghostface, is the mystery. As teen victims start to pile up, survivors run for their lives while trying to unmask the murderer.
The first film follows high school students stalked by a mysterious assailant obsessed with horror movies. The deaths trigger a media circus, with teen Sidney Prescott (Neve Campbell) caught at the center of it. She’s also still struggling to process the murder of her mother a year prior.
Scream reinvigorated slashers in the ‘90s and spawned sequels and even more horror films that tried to draft off its success. Even so, none of them feature a mystery as intriguing as the original.
Gosford Park (2001)
After Scream shook things up, whodunits didn’t immediately flood the ‘90s. The genre got a proper reinvigoration later, and one of the loudest signals was Robert Altman’s Oscar-nominated Gosford Park.
Written by Julian Fellowes—who would later create the series Downton Abbey—the film returns the upstairs-downstairs examination of the British class system, but with Altman’s subversive mind and a classic whodunit wrapped around it.
Gosford Park is set on a country estate where wealthy guests gather for a shooting weekend. The tensions are already high among guests and staff before one of them is murdered. which exposes further fractures within the social ranks. Altman’s observation of characters becomes part of the mechanism: as the camera wanders and conversations overlap. viewers have to listen closely to figure out which cast member might have had a reason to kill.
Hot Fuzz (2007)
Hot Fuzz pulls its whodunit flavor into something messier and far louder. It’s the second entry in the Cornetto Trilogy, following Shaun of the Dead. The film blends buddy-cop action, cult horror, slapstick comedy, and a dash of whodunit.
The murder mystery elements eventually slide into the background during the action-packed third act, and the classic killer reveal is not delivered in the usual way. But the story is described as too much fun to nitpick.
Supercop Nicholas Angel (Simon Pegg). who is too efficient. is sent away by his lackluster superiors to a quiet village in the West Country. There, Angel partners with the bumbling Danny (Nick Frost). In the village. the accidental deaths that plague the area appear to be more than accidents—suggesting a gruesome murderer is behind them.
Hot Fuzz is called one of the best comedies of the 2000s, with Edgar Wright’s energetic direction and the chemistry of Pegg and Frost powering its “perfect little mystery.”
Knives Out (2019)
If there’s one 21st-century whodunit that reset the genre’s popularity, it’s Knives Out. Directed by Rian Johnson, it’s described as the biggest and most popular reinvigoration of the whodunit on film this century.
Johnson also introduced one of the genre’s greatest new detectives: Daniel Craig as gentleman sleuth Benoit Blanc. Johnson went on to create two subsequent films featuring Blanc—Glass Onion and Wake Up Dead Man—but the original Knives Out is labeled a modern whodunit masterpiece.
The story begins with famed author Harlan Thrombey (Christopher Plummer) dying of an apparent suicide on his country estate. The case initially seems open-and-shut—until Blanc is anonymously summoned by someone who suspects foul play.
That suspicion hits hard for Marta (Ana de Armas), Thrombey’s nurse. She believes she is responsible for his death after accidentally giving him a lethal dose of morphine. But as the privileged family turns toward her. she’s named the sole benefactor of Thrombey’s estate. bringing new pressure and attention.
The truth, as in Johnson’s style, is more complicated than it looks at first. Knives Out keeps delivering one delightful twist after another in its tightly constructed mystery.
For a murder-mystery weekend, these films offer different flavors of the same promise: the suspects are on the board, the clues are there, and the reveal doesn’t come until you earn it.
whodunit movies murder mystery films The Thin Man And Then There Were None The House of Fear The Last of Sheila Murder on the Orient Express Clue Scream Gosford Park Hot Fuzz Knives Out
So like, is this actually about solving real mysteries or just movies?
I feel like Knives Out was overrated but at least it kept you guessing? Idk I watched it with friends and somebody spoiled the ending halfway through.
The Thin Man mention threw me off like “thin man” makes it sound creepy health stuff, not crime. Also Hammett… isn’t that the guy who wrote the stuff about con artists? Anyway, if the suspects are “introduced early” doesn’t that kinda ruin it? Like you already got the cast so how is it a twist.
Whodunit movies are the only ones where I pretend I’m smart and then I’m wrong anyway. I’m surprised they didn’t list more modern ones though, like Netflix always puts out something and calls it a mystery. Also “perfect mysteries start to finish” sounds like clickbait, but I’ll probably watch one of these and then complain about the acting.