Detectives Cara Elliott and Noah Deakin are on the case of a series of seemingly unconnected murders, each different in method but each shocking and brutal. As the body count increases, they can't ignore the details that echo famous cases of the past—Manson, Kemper, Dahmer, and more. As Elliott and Deakin get closer to unmasking the killer, the murders are moving closer to home. Meanwhile, Jessica Ambrose is on the run. She's been implicated as the arsonist who killed her neglectful husband and injured her young daughter. With the help of disgraced and suspended detective Nate Griffin, Jess discovers a shocking link between her case and that of the ultimate copycat killer working on his horrifying masterpiece.