Friend of the Devil, by Peter Robinson

Chief Inspector Alan Banks and Detective Inspector Annie Cabbot are investigating different murders that are linked by past serial killers, including a husband-and-wife team, the Paynes. Lucy Payne, the infamous "Friend of the devil," has been murdered. These are terrific characters and a complex story. If you haven't read any of his previous works, you're in for a real treat -- start at the beginning with "Gallows View" and enjoy! I especially like to learn what music Robinson's characters listening to, and in fact, Robinson's website (www.inspectorbanks.com) now has a playlist link. What fun!