Olivia Moore is an over-achieving medical resident who was bitten by a zombie during a party that unexpectedly became a feeding frenzy for the undead. Now part zombie herself, Olivia has taken a job at a coroner's office as part of a plan to resist her urges to devour human brains. Her new position will allow her to secretly consume the brains of fresh corpses without needing to kill people herself.

What Olivia doesn't expect is that with every brain she eats, a portion of its memories become part of her own. With this new ability to see visions from the point of view of the victims, Olivia starts to help solve the murders of the people she uses to stay alive.