Kindle. I found it a bit strange. Having been hired out of San Francisco to investigate a murder, our unnamed first-person narrator decides for reasons unknown to clean up Personville (or in a Looney Tunes accent, Poisonville) which is apparently not too far from Ogden and Salt Lake City in Utah. It has all the tropes: the busted police department, the mob, the godfather, the gamblers, boxers, a solitary femme fatale, many shootups/outs, love triangles and so on. There are a few elements of Basic Instinct. Despite terminal issues with their operation the mob doesn't send help. As far as I remember Hammett doesn't develop a few of his named, notionally central characters: Lew Yard for instance.
The narrator always seems to know more than he's told us and that gets annoying. The episodic resolutions reflect its serialized form and suggest that Hammett made it up as he went along; the ultimate ending is nothing very special. I think his use of the third person and tighter control of the overall narrative arc in The Maltese Falcon was more successful.
Goodreads. The source of many a movie.