The Thin Man

As far as mysteries go, this one was a bit hard to follow. The clues aren't laid out for you, as with most hard boiled mysteries I suppose, but it got repetitive. Here's how it goes: he has some cynical banter with his wife, drinks, comforts Dorothy, talks to the police, goes somewhere else, starts over again. I give it credit because the resolution was interesting and satisfying, though I don't feel I was given the tools to guess it on my own.

Update: This book was the basis of a very popular series of movies from the 1930s, more worth watching than reading the book.