The Yiddish Policemen's Union, a 2007 novel by Michael Chabon. In all honesty, I don't think it's all that great. I didn't grow up hearing Yiddish inflected and syntaxed English, so the linguistic quirkiness of the book passed me by. I probably took too long reading it, so it was hard to keep up with all the twists and characters. I don't understand how it became such a hit.
It's one of those "what if" stories. What if the nascent State of Israel had been defeated in 1948? The author placed the refugees from Europe, and what about the HolyLand did I miss something, in a Jewish ghetto in Alaska. Remember that Alaska, along with Hawaii, only became a state in the mid-1950's.
If I was to imagine such a "what if" I wouldn't end up where Chabon did. I'd see terrible gangster fighting and manipulation between the the descendants of the various pre-state undergrounds, Haganah, Palmach, Etzel, Lechi and pre-state religious groups Mizrachi and Aguda, chassidim and misnagdim which all had their parallel branches in Europe.
Chabon hasn't a clue in his lokshen-colored story, just too parve or over-cooked for words.
The book I just finished last night is also a murder detective mystery but totally and utterly different. It's a Michael Connelly, The Brass Verdict, featuring Harry Bosch and Mickey Haller. The only disappointing thing was that it was over too quickly. I wanted to read more, but that happens with most of Connelly's books. He doesn't try to be "too clever," like Chabon. I like the "could be real" element in Connelly's books. Chabon's fiction reminds me of the first Star Wars movie. You can tack on both prequels and sequels. Maybe he will, but I don't know if I'll bother reading them.