Liv and Clive investigate the murder of Miss Teen Seattle beauty pageant contestant, Laurie-Beth Spano, who went into anaphylactic shock onstage in 1999 and ended up in a coma. At the time, police arrested rival contender Velma Charlet for spiking Laurie-Beth's makeup and she was given a four-year sentence. In present day, Laurie-Beth has passed away and Clive has arrested Velma, for her murder. Velma claims to be innocent and Liv consumes Laurie-Beth's brain in hopes of tracking down the murderer.
Olivia “Liv” Moore was a rosy-cheeked, disciplined, over-achieving medical resident who had her life path completely mapped out…until the night she attended a party that unexpectedly turned into a zombie feeding frenzy. Now a med sudent-turned-zombie, she takes a job in the coroner's office to gain acces to the brains she must reluctantly eat to maintain her humanity, but with each brain she consumes, she inherits the corpse's memories. With the help of her medical examiner boss and a police detective, she solves homicide cases in order to quiet the disturbing voices in her head.
Series finale - The human versus zombie war finally comes to a head.
Penultimate episode - Liv makes a devastating discovery.
Liv and Clive investigate the death of an old school drag queen which leads Liv to eat and shift into the queen’s brain. Meanwhile, Ravi reaches out to Major with an interesting request.
While investigating the murder of private eye Mick Chisel, who was stabbed in the head with an ice pick, Liv consumes Chisel's brain in hopes of breaking down how this gruesome murder took place.