"Batman: Broken City" by Brian Azzarello and Eduardo Risso
This is a story arc that originally appeared in the "Batman" monthly comic book. The story is by Brian Azzarello, who has been mentioned here before, with pencils by Eduardo Risso.
It is A LOT like Frank Miller's "The Dark Knight Returns." The two series are so alike, in fact, that I am tempted to call this a copy. Risso's pencils, in particular, are like Miller's without the interesting buildings and more ambitious splash pages. Risso is an undeniably good artist, but I hope that he eventually develops a style more his own.
The story is clever enough, and I liked the twist at the end. Azzarello has, however, written much better stories, and I would only recommend this one if you've already gone through "Joker" and "Luthor."