Kaely Quinn’s skills simply because an FBI behavior analyst are difficult to ignore, no matter how unorthodox her methods. But when a reporter outs her as the little girl of the infamous serial killer, she’s demoted to field agent and used in St. Louis.

When the same reporter who ruined her career claims to have received an anonymous poem predicting a string of murders, ending with Kaely’s, the reporter’s ulterior motives bring his claim into issue. But when a body is found that fits the poem’s predictions, the threat is undeniable, as well as the FBI sends Particular Agent Noah Hunter to St. Louis.

Initially resentful from the assignment, Noah is surprised at how quickly his respect for Kaely grows, despite her oddities. But having a brazen serial killer who breaks all the normal patterns around the loose, Noah and Kaely are tested to their limits to catch the murderer before anyone else-including Kaely herself-is killed.