Read again? Yup!
The Red Court of Vampires have declared war on the White Council wizards. In the few months since the end of "Grave Peril," the vampires have sent assassins after Dresden and other wizards. The White Council convenes a meeting in Chicago--technically, the war is his fault--to discuss the war and whether there even needs to be a Wizard named Harry Dresden.
They're aware, of course, that the Winter Queen of Faerie wants him to solve the murder of an old man. Chicago PD says it's suicide. Queen Mab says it's not. The man was murdered, and since he was the Summer Knight, the Summer Faeries are gearing up to war, convinced that their Knight was killed by Mab or one of her own.
Solve the murder, prevent an impending war, save his own ass from the wizard Council...all in a day's work for the Wizard P.I.
AWESOME: Harry battles a chlorofiend in the garden center of a Super Wal-Mart!
Cool stuff: Dresden goes to visit one of the Faerie chicks by going through Undertown, a sort of underground Chicago. Turns out it's real, to an extent. Dresden's Chicago is more of an alternate Chicago. Butcher lives in Kansas City!
Fun, fast-paced, great characters, all the good stuff I've said about the previous three books. If you haven't read them yet--what the hell are you WAITING for?!