I won this book in a goodreads drawing.
The world has changed by 2040. An AI, hacked by unkown persons, went meshuggah, and planes fell from the sky, among other things, including a limited nuclear war. We don't have to worry about Moscow anymore, though.
Enter our heroes, a mismatched pair of private detectives based in San Francisco. They meet a famous PI, and help her out on a case. Then the PI is murdered, and our heroes are going to get to the bottom of things.
I figured the mystery out fairly quickly, but the setting helped this one stand out.