This category is for mysteries investigated by private detectives or amateur sleuths. For mysteries investigated by police or other authorities, see law enforcement. For movies where the criminals are the protagonists, see crime films. There may also be movies with mysteries investigated by detectives or authorities that I'll list under film noir instead of in this category (though in rare cases I might list them in both categories). For TV mysteries, see detective shows.
stuff I've seen:
Murder on the Orient Express (1974)
Sherlock Holmes (2009)