Knives Out works because Rian Johnson respects the whodunit while gleefully breaking it. You get the mansion, the scheming heirs, the eccentric detective, and then the film hands you the answer early and makes the fun watching how the truth surfaces anyway. Add sharp class comedy and a cast having a blast, and it is easy pleasure with real craft underneath. This list favors those exact qualities: mysteries built on shaded testimony, wealthy households rotting from the inside, structure treated as part of the show. Fair warning: true whodunits are rarer in this catalog than you would expect, so half these picks are older films, chosen because they invented the tricks Johnson borrows. Nothing here gives you another Benoit Blanc. What you get instead is the machinery that made him possible.
Loved it? Read more about Knives Out (2019), including cast, trivia, and its TML Score.

A wealthy household, infiltrators with a plan, and comedy that curdles into class warfare. If Knives Out is 2019's American house thriller, this is its Korean twin.

Kurosawa's kidnapping procedural starts in a rich man's living room and never stops interrogating money. Half moral vise, half detective hunt, it earns its mystery the way Blanc does: legwork.

One crime, four self-serving accounts, no settled truth. Every whodunit that treats testimony as suspect owes this film a debt.

Not billed as a mystery, yet it works like one. A domestic incident, everyone shading the truth, and you playing detective from your seat.

A murderer dares the system to catch him, and the system flinches. Its satire of untouchable privilege is pure Thrombey.

One room, no corpse on screen, all deduction. Watching a patient skeptic take apart a sure thing is exactly the pleasure of Blanc's final reveal.

The country-house blueprint. A lavish estate, hosts and servants tangled in secrets, social satire that ends in a shooting. Older and subtitled, but the Thrombey DNA is unmistakable.

A family held together by petty crime and kindness, until late revelations rewrite everyone's motives. Johnson pulls that reversal on the Thrombeys, only louder.

A real impostor talks his way into a trusting family, and Kiarostami sifts the competing explanations on camera. Nonfiction, but built like an interrogation.

The wildcard: supernatural premise, but at heart a duel of pure deduction between a brilliant killer and a strange, brilliant detective.