An elite team of FBI profilers is called in to help Chicago detectives investigate a series of bizarre murders. Though all are violent and disturbing, the crimes seem unrelated—until profiler David Rossi makes the connection. He recognizes each grisly tableau as one modeled on the crime scenes of three of the country's most notorious serial killers: David Berkowitz, Ted Bundy, and Jeffrey Dahmer. Someone is taking the cult of true crime to terrifying extremes, and with so many killers left to emulate, Rossi wonders how he can possibly profile a killer who's hiding within the killer profiles of others…