Liv and her boyfriend become closer when she shares the brain of a former daredevil with him.
While Liv tries to track down who stole the cure, she and Clive investigate the murder of an aggressively cheerful preschool teacher who was a womanizer on the side.
A scatter-brained narcissist is murdered, and Liv takes on the same qualities when she consumes the woman's brain to solve the case. Meanwhile, Blaine reveals his deepest secret to Peyton, and Major is stricken with amnesia.
Liv's personality becomes bossy and controlling after she eats the brain of a dominatrix, making everyone uncomfortable.
Liv and Clive investigate the apparent murder of an office gossip at a dental supply company. Meanwhile, Peyton waits with Blaine to see if the memory serum works, and Major continues trying to find Natalie.
Clive and Liv try to solve the murder of a mindfulness guru. Meanwhile, Major's condition worsens and his only chance is for Blaine to volunteer as a guinea pig.
Liv, Clive and Ravi suspect foul play was involved in a fatal car crash. Clive reveals his connection to a murdered family. Peyton tries to make peace with Ravi.
New Season: Liv finds there are more zombies in Seattle than she previously thought.