Fool Moon takes place six months after the events of Storm Front. Harry Blackstone Copperfield Dresden, Chicagos only professional wizard for hire, has not been employed as a Special Investigations Squad by the Chicago Police Department since the events of Storm Front. His friend, police chief Karrin Murphy, has been giving him the cold shoulder, and Harry has been accused of working for local gangster John (Johnnie) Marcone. One October night, he gets a visit from Lieutenant Murphy about a murder - one that has been very, very messy and seems to be the latest in a series of gruesome events, which coincidentally happen at full moon. And theres more moonlit nights on the way...