Dashiell Hammett’s The Thin Man.
I have just about every Dashiell Hammett story ever written. There’s some excellent collections available at a reasonable price. Hammett was an amazing writer, entirely self taught. He’d been a Pinkerton as a young man and knew the world of crime and detectives. Prior to Hammett detective fiction wasn’t very realistic. One admirer said ‘Hammett took murder out of the vicar’s garden and gave it back to the people who were really good at it”.