After eating the brain of their newest John Doe, Liv gets a vision of Clive as a dirty cop working with a gang to find a rat in their organization. Meanwhile, Major gets a new roommate, and Blaine expands his business operation.

When someone close to Major dies of an apparent suicide, Liv consumes the brains resulting in a mix of reality and paranoia. Clive questions Major and learns of a secret computer file that may contain important details in the investigation – and finding the killer.

Liv eats the brains of a recently murdered trophy wife who was pushed to her death from the balcony of her stunning architectural home in the hills by a hired hit man. A Pinot Grigio-sipping, suddenly fashion obsessed Liv and Detective Babineaux begin questioning suspects in their search for the original brains behind this murder. Meanwhile, Liv and Ravi are surprised to learn that Peyton has returned to Seattle.

An actor is accidentally shot on the set of Liv's favorite TV show--Zombie High--and she convinces Clive to let her help in the investigation. Meanwhile, Vaughn devises a loyalty test for Major, and Dale connects Blaine to the Meat Cute massacre.

While Liv and Clive investigate the murder of a coffee shop owner with an extremely sunny outlook on life, Ravi tests the new cure on a rat before administering it to Major. Meanwhile, Boss discovers who has been moving in on his turf.

Clive's patience is tested when Liv consumes the brain of a murder victim who had the reputation of being the ultimate office gossip. Meanwhile, Blaine and Peyton continue to grow closer as they wait to see if Ravi is able to reverse the effects of the cure. Lastly, Major is one step away from fulfilling a promise.

When a Dungeon Master is killed, Liv and Clive discover he was up to more than just playing in his mother's basement. Meanwhile, Blaine's experiment does not go as planned. Lastly, Ravi stumbles across some new information that could prove deadly.

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.