FBI Agent Audra Wheeler has been haunted for the last thirteen years by a paranormal attack that left her sister, Kendra, in a coma. Mentored by FBI Assistant Director Jonathan Cordero to investigate crimes committed by specters, Audra believes she is on the trail of a 'serial killer' specter with a MO very similar to her sister's attacker. The investigation takes her to a small town of Specter, Georgia; a haven for ghosts who exist among the living.