The international bestseller that has sold over 5 million copies worldwide. The voice on the radio. The writing, red as blood. I kill . . . A detective and an FBI agent embark upon the most harrowing case of their careers as they attempt to track down an enigmatic killer in this relentlessly suspenseful thriller. The killer announces his heinous acts in advance with phone calls to radio stations and ties his crimes together with songs that point to his victims. Set in Monte Carlo and featuring an international cast of intriguing characters, the hunt for the deranged perpetrator remains gripping and unsettling, possibly even more so, after the killer's identity is revealed and the detectives must close in on their target before he strikes again.