The brilliant duo, Detective Chief Inspector David Brock and Detective Sergeant Kathy Kolla, return to solve the brutal slaying of one of Britain's leading philosophers. Professor Springer was well-known for his stand against fundamentalism, but were his opinions reason enough to murder him? Brock and Kolla start looking for answers in London's Muslim communities, but perhaps Springer's enemy is closer to home? Brock and Kolla must sift through the clues and find the real killer before the threatened confrontations between communities erupt into violence.