You like your crime novels huh. Whenever I think of these books I think of american 1940s gumshoe movies,dark and mysterious with a damsel in distress and too much music and melodrama!
I'd have to read one,see what they're really like.(I've read some Sherlock Holmes stories but they're somewhat different I think)
Not much melodrama in good Noir in books or film noir.
They are dark,lean,cool. Watch a Humphrey Bogart film like The Big Sleep or The Maltese Falcon. The Detour(1945), Le Samurai(french film noir)
Plus Hammett isnt traditional,more romantic with damsels that seduce the hero PI Noir like Chandler,Marlowe.
Good crime fiction is as important as Science fiction for me and more important than fantasy. Noir are perfectly to my taste. Its darker,less drama,typical heroics,awesome characters.
I almost hate cosy mystery alà Christie and her kind. Sherlock Holmes,C.Augustine Dupin is the only really old classic crime that works for me.
Plus all Noir isnt about detectives. My favorite kind are about criminal,sickos,heist like Donald Westlake,Jim Thompson,Elmore Leonard.