It's the first book from a series called Dresden Files, which kept popping on my "stuff I should have a look at" radar, and it was worth the attention. Harry Dresden is a registered wizard (he's in the Yellow Pages and all that); he works more or less as a "wizard PI" (he has a specialty in finding lost things, apparently), and he occasionally helps the police when it comes to weird investigations. And when two people are found with their hearts ripped out of their ribcage, it's definitely in the realm of "weird investigations". It doesn't help that, as one of the few wizards potentially able to pull that kind of things, he's obviously a prime suspect in the investigation from the occult side of the force. All in all, pretty cool. And funny. Maybe a bit of a show-off for the ending - a bit too much "big bad of the season"; but generally speaking worth reading.