Good murder mystery movies, fire them at me.
@cdevroe Knives Out is a recent favorite. Definitely check out The Invisible Guest. (Spanish title: Contratiempo) but don't read about it in advance. It has great twists. And the Scream trilogy is actually nice set of murder mysteries masquerading as horror movies.
@cdevroe seconding Knives Out | story-wise you can't beat anything Conan Doyle cooked up, but the BBC TV Sherlock actually betters all the movies!