These 20 Classic Murder Mystery Movies Will Keep You Guessing Until the Very End

There's murder, intrigue and the classic "whodunit" question ... What's not to love about murder mysteries? Though the murder mystery has long been one of cinema's most beloved and celebrated storylines, this classic film genre has recently seen an explosion in popularity (thanks to films like Knives Out), and is now more in-demand with audiences than ever. Luckily, there are plenty of options when it comes to murder mystery movies, from the best psychological thriller films to horror movies, dramas and even laugh-out-loud comedies.

To help you awaken your own inner armchair detective, we've rounded up some of the best murder mystery movies available to stream now — including movies you can watch on Netflix, Amazon Prime and other popular streaming services. Whether you're on the hunt for an exciting pick for family movie night or or you're looking for a film to match the theme of your murder mystery Halloween party, these exciting "whodunit" movies have something for everyone — including gripping storylines, suspicious characters and shocking plot twists you'll never see coming.