Meet the Corniest Serial Killer ever. Of course, that’s not what the media are calling him, but Zoe Bentley – a forensic psychologist contracted to the FBI’s Behavioral Analysis Unit – coins a term that’s far more fitting for our “big bad”. When Zoe is pulled into a Chicago serial killer investigation by newly promoted agent, Tatum Gray. Soon, she starts to receive strange envelopes, sent by someone from her past. Is he the killer, or is someone else responsible?