There's something undeniably captivating about a good mystery. Whether it's a true crime saga or a fictional puzzle, the thrill of piecing together clues and unmasking a culprit has kept audiences on the edge of their seats for generations. In cinema, the whodunit—a subgenre of murder mystery where the identity of the killer is the central question—has produced some of the most beloved and rewatchable films ever made. For those just dipping their toes into this world, the sheer number of options can be overwhelming. That's why we've ranked the 10 best whodunits for beginners, focusing on films that are accessible, engaging, and quintessential to the genre.
The roots of the whodunit go back to literary giants like Agatha Christie, Raymond Chandler, and Sir Arthur Conan Doyle, whose works laid the groundwork for the genre's conventions. Their influence is still felt today, from the locked-room mysteries to the cleverly hidden clues. For newcomers, starting with these foundational stories is a smart move, but there are also modern takes that breathe new life into the formula. Below, you'll find a mix of classic adaptations, quirky comedies, and tense thrillers that will ease you into the world of whodunits.
10. Presumed Innocent (1990)
Harrison Ford stars in this legal thriller as Rusty Sabich, a prosecutor who becomes the prime suspect in the murder of a colleague with whom he had an affair. Directed by Alan J. Pakula, the film is a tense, character-driven mystery that keeps you guessing until the very end. Unlike traditional whodunits that present a lineup of suspects, Presumed Innocent focuses on one man's desperate attempt to clear his name, making it a great entry point for those who prefer a more personal stakes-driven narrative. The film's twist ending is a classic, and Ford's performance is a standout.
9. The Last of Sheila (1973)
This clever, star-studded mystery takes a meta approach to the genre. A wealthy film producer invites a group of friends on a yacht trip, but it's all a ruse to uncover which of them killed his wife in a hit-and-run a year earlier. Written by Stephen Sondheim and Anthony Perkins, The Last of Sheila is a witty and intricate puzzle that rewards attentive viewers. It's a perfect pick for beginners who enjoy a bit of glamour and gamesmanship with their murder, and its twist ending is a doozy.
8. Evil Under the Sun (1982)
Agatha Christie's beloved detective Hercule Poirot returns in this sun-drenched mystery set on a Mediterranean island. When a detestable actress is murdered, Poirot must untangle a web of alibis and motives among the hotel's guests. Peter Ustinov's portrayal of Poirot is charming, and the all-star cast, including Maggie Smith and Diana Rigg, adds to the fun. While it's often overshadowed by other Christie adaptations, Evil Under the Sun is a solid, entertaining mystery that's perfect for beginners looking for a classic whodunit.
7. Gosford Park (2001)
Robert Altman's Gosford Park is a witty and socially observant whodunit that takes place at a 1930s English country estate. When a wealthy guest is murdered, the investigation reveals the secrets and class tensions between the upstairs guests and downstairs servants. With an ensemble cast including Helen Mirren, Maggie Smith, and Ryan Phillippe, the film is more about character and atmosphere than pure puzzle-solving, making it a unique and rewarding entry for beginners. It's a film that rewards multiple viewings, and its influence can be seen in later works like Knives Out.
6. Death on the Nile (1978)
Another Poirot classic, Death on the Nile is a lavish and glamorous mystery set aboard a river steamer. When a wealthy heiress is murdered, Poirot must question a boatload of suspects, each with a motive. The film is a feast for the eyes, with stunning locations and a cast that includes Bette Davis, Mia Farrow, and David Niven. It's a quintessential whodunit that follows the classic formula, making it an ideal starting point for those new to the genre. The 2022 remake is also worth a watch, but the original remains a benchmark.
5. Clue (1985)
Based on the classic board game, Clue is a comedic whodunit that has become a cult favorite. Six strangers are invited to a mansion, where they are each given a weapon and a motive for murder. When the host turns up dead, the guests must work together to figure out which of them did it. With a rapid-fire script and a brilliant cast led by Tim Curry, Clue is a hilarious and endlessly quotable film. It's a perfect introduction to the genre for those who prefer their mysteries with a side of laughter.
4. Murder on the Orient Express (1974)
This is the definitive adaptation of Agatha Christie's most famous novel. When a murder occurs on the luxurious Orient Express, Poirot must solve the case before the train reaches its destination. The film boasts an all-star cast, including Albert Finney, Lauren Bacall, and Ingrid Bergman, and its iconic ending is one of the most famous in mystery fiction. For beginners, this is a must-watch, as it encapsulates everything that makes a whodunit great: a confined setting, a diverse cast of suspects, and a brilliant detective.
3. Knives Out (2019)
Rian Johnson's modern masterpiece revitalized the whodunit for a new generation. When renowned crime novelist Harlan Thrombey dies after his 85th birthday party, the enigmatic detective Benoit Blanc is hired to investigate. What follows is a clever, funny, and socially relevant mystery that pays homage to the classics while feeling fresh and inventive. With a star-studded cast including Daniel Craig, Ana de Armas, and Chris Evans, Knives Out is a perfect entry point for beginners, proving that the genre is alive and well.
2. Witness for the Prosecution (1957)
Directed by Billy Wilder, this courtroom drama is a masterclass in suspense. When a man is accused of murder, his wife's shocking testimony becomes the key to the case. Based on an Agatha Christie play, the film is a gripping legal thriller with a twist ending that will leave you speechless. It's a bit more talky than some other whodunits, but the payoff is immense. For those who enjoy a good courtroom battle, this is an essential watch.
1. The Thin Man (1934)
This classic comedy-mystery is the perfect introduction to the genre. Nick and Nora Charles are a glamorous, witty couple who stumble into a murder investigation while on a trip to New York. With their dog Asta in tow, they navigate a world of eccentric suspects and clever banter. The Thin Man is charming, funny, and endlessly rewatchable, and it set the template for the screwball mystery. It's a delightful start for any beginner, and it spawned several sequels that are equally enjoyable.
These ten films offer a fantastic starting point for anyone curious about whodunits. From the classic puzzle of Murder on the Orient Express to the modern wit of Knives Out, each movie provides a unique take on the genre. So grab some popcorn, settle in, and get ready to play detective. And if you're looking for more suspenseful viewing, check out our list of the most suspenseful thrillers since 2000 or dive into the top American thrillers ever made. Happy sleuthing!
