Something dark is lurking in the Louisiana bayou: a methodical killer with a penchant for medical experimentation is hard at work completing his most harrowing crime yet, taunting the authorities who desperately try to catch up. But forensic pathologist Dr. Wren Muller is the best there is. Armed with an encyclopedic knowledge of historical crimes, and years of experience working in the Medical Examiner's office, she's never encountered a case she...

Georgia medical examiner Sara Linton, her ex-husband, police chief Jeffrey Tolliver, and assisting detective Lena Adams, are forced to confront disturbing aspects of their own lives and relationships as they investigate a religious cult which has a practice of burying faithless members alive.