Dr. Will Zimmerman is a brilliant forensic psychiatrist who gained stature while working with the Federal authorities. A master of behavioral science, he can translate the most veiled human signals into case-breaking deductions. But his fascination with alternative and otherworldly explanations for horrific crimes has cost him the respect of his peers and his job. His fall from grace at the Bureau attracts the attention of Dr. Magnus, who makes him an offer to join her team an offer he realizes he can't refuse.