Forensic odontologist Dr. Catherine Ferry specializes in bite marks on victim's bodies. She is a consultant with the New Orleans Police Department and joins an FBI task force working the case of a serial killer who leaves bite marks all over his victims. When Cat has a panic attack at a crime scene, she is removed from the case and returns home to Malmaison, a mansion located in Natchez, Mississippi. At Malmaison she uncovers evidence that forces her to question the circumstances under which her father died when she was eight years old. Soon she realizes her family and past are intimately tied to the serial murders in New Orleans.