Medical resident Liv Moore becomes a zombie and loses her ambition until she begins working at the city morgue to gain access to brains that give her sustenance and allow her to maintain her humanity. She also learns that her new diet enables her to experience a victim's memories that can be used to help solve the person's murder.
Liv and Babineaux investigate a hit-and-run case and discover the victim was a hit man responsible for the murder of a tech entrepreneur, a case that Peyton is prosecuting. Meanwhile, Liv makes a surprising discovery about someone from her past, and Peyton is shocked by Liv's reaction when Major moves on with his life.
When Clive identifies a John Doe in the morgue as one of his former criminal contacts from his days on the vice squad, Liv is surprised that Clive is so quick to refuse her help in solving the murder. Liv and Ravi investigate on their own which puts them in a precarious situation. Liv’s problems continue to mount when Major begins searching for a roommate and she believes he’s considering a cute co-ed.
Liv reluctantly eats the brains of her recently murdered sorority sister Holly to help gain insight into her murder. This case takes Liv and Clive into Holly’s world of extreme sporting where they meet professional snowboarder Carson McComb, a murder suspect who appears to be hiding a secret. Meanwhile, Liv has a strange connection with one of the other murder suspects and Major voices his concern to Clive over a young boy’s disappearance.
Liv, Clive and Ravi work together to investigate the murder of a computer-hacker. Liv inherits intense agoraphobia after consuming his brains along with mad skills at computer gaming. This delights Ravi, who urges her to play and offers to help her from inside the game, as they continue to search for the killer. Meanwhile, Blaine becomes acquainted with someone close to Liv.
A group of teens get a scare when a disheveled young pregnant woman approaches them muttering for help. Unfortunately, the woman doesn’t survive but her baby does. Liv and Clive begin questioning suspects in her murder, and after consuming the victim’s brain, a fierce maternal instinct kicks in for Liv. Meanwhile, Major makes a shocking discovery.
Liv and Clive work together to solve the murder of a morning radio talk show host who specialized in relationship straight talk. Liv becomes filled to the brim with insight after consuming the brains, making Clive extremely uncomfortable when Liv starts getting personal. Meanwhile, Peyton steps in to help Major, and Blaine issues a warning. Lastly, Ravi’s unexpected romantic connection has the potential to make things awkward for Liv.
Liv and Clive investigate the mysterious death of a former sniper, Everett, who has been working as an instructor at a paintball facility. They begin questioning family members including Everett’s ex-wife and her new husband Sean and realize things are not what they seem. Meanwhile, Major continues to get closer and closer to the truth, and Blaine does the unthinkable.
Liv and Clive investigate the murder of a journalist working on a story linking psychotic episodes in a small number of consumers to the energy drink Max Rager. Liv goes straight to the top at Max Rager HQ and questions the man in charge, Vaughn Du Clark. Meanwhile, Ravi tries to help Major who continues to believe he's going crazy.
A group of drunken teenagers take a late night joyride with disastrous consequences. As they cover up the accident, the man mysteriously comes back to life and attacks one of the girls. After Liv consumes the girl’s brain, she is taken back to high school as she and Clive investigate the case. A surprise death of one of the victim’s friends raises some serious questions about the case. Major believes Blaine’s deli is not all it seems to be.
Liv consumes the brains of a cantankerous old man to help gain insight into his death. After receiving an anonymous call on the tipster hotline, Liv and Detective Babineax stop by the residence of Byron Thistlewaite, to question the mysterious caller. Meanwhile, Ravi suspects that Major might be experiencing a side effect of the cure, and Liv pays Blaine a surprise visit.
Liv and Detective Babineax investigate the murder of a hard-partying frat boy whose death shocks everyone. After consuming his brains, Liv attends a fraternity party in an attempt to search for clues, but ends up ruling the beer pong table instead. Still desperate to find the cure, Ravi takes matters into his own hands and brings Major along for the ride. Meanwhile, Blaine meets with Angus, a mysterious person from his past.
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.
While investigating a case, Liv eats the brains of a country-singing waitress. Detective Babineaux meets a female FBI agent who will be working out of their offices. Blaine tries to entice a former business associate to come back to the dark side. Meanwhile, Peyton’s return is messing up Ravi’s game, and Major continues his downward spiral.
Liv, Detective Babineaux and Ravi investigate the mysterious death of a peewee basketball coach. Liv, consumed with overzealous coach brains, gives Major a much needed pep talk. Meanwhile, things get a little crazy when Blaine and Ravi are forced to work together to recreate the cure. Lastly, Detective Babineaux receives a surprise visit from Suzuki’s widow Helen.
Liv unwittingly crosses paths with the most dangerous man in Seattle while investigating the murder of degenerate gambler Harry. Detective Babineaux has a super-fan moment when he and Liv question NBA Hall of Famer Calvin Owens at Harry’s funeral. Meanwhile, Blaine’s father makes a huge discovery, and Ravi delivers some bad news. Lastly, Evan has a big secret to share with Liv, and Major continues to struggle.
Liv consumes the brains of a death-obsessed illusionist who was murdered in cold blood during a magicians’ convention in Seattle. As Liv and Detective Babineaux investigate the case, she uses her new skills to help narrow down the suspect pool. Meanwhile, Blaine gives Liv some interesting news, and Ravi makes a decision but things don’t end up going quite as planned. Lastly, Major continues to distance himself from Liv.
Detective Babineaux arrives at the crime scene of a wedding planner who was shot to death, and is shocked to realize that he used to date the victim. To make matters worse, we learn that the murder victim was stalking Detective Babineaux, and that he is now the number one suspect in her murder. Liv and Ravi pose as an engaged couple in order to infiltrate the victim’s wedding planning business. Meanwhile, Major is having a tough time dealing with Liv on stalker brains.
Liv, Detective Babineaux and Ravi work together in solving the murder of Chris Allred, who was a high school shop teacher by day, and a vigilante crime-fighter named “The Fog” by night. Liv gets into trouble while on superhero brains and becomes a little too much for Clive to handle. Meanwhile, Major has an eye opening conversation with a new friend. Lastly, Blaine forces Liv to do the unthinkable.
Detective Babineaux and Liv are investigating a triple homicide, and Liv is shocked to learn that the victims’ bodies are missing their heads. A very hungry Liv is forced to consume the brain of an unfortunate social media hungry soul who was recently run over by a bus. Meanwhile, Peyton leans on Ravi for support, and things get interesting when Blaine’s worlds start to collide.
Liv and Detective Babineaux investigate the murder of Corey “Big Fish” Carp, who they learn got his nickname not because of his last name but because he was a well-known pathological liar. Ravi makes an unsettling discovery and Blaine is reunited with someone from his past. Meanwhile, Major finds himself in a precarious situation.
While investigating the murder of a research scientist who was recently demoted at her job, Liv and Detective Babineaux are shocked to learn where she had been employed. Meanwhile, Blaine pays Ravi a visit at the morgue, and Liv discovers something new about Drake. Lastly, Vaughn du Clark confronts Major.
Liv and Detective Babineaux are investigating the murder of Bailey Barker, a type-A, ambitious, hyper-competitive and driven student near the top of her class. After consuming Bailey’s brain we see Liv become very much like the girl she was before becoming a zombie. Meanwhile, things seem to be going from bad to worse for Major, and Blaine reaches out to Ravi for help.
Liv has discovered there are more zombies living in Seattle than she previously believed. In fact, there’s a private military contractor employing a small zombie army, and that army is preparing for the day humans learn of their existence. Major was exonerated for the crimes of the Chaos Killer, but is still considered a pariah. He manages to land a job with the one and only place that will hire him. Meanwhile, Blaine is accused of lying.
When Liv, Clive and Ravi arrive at the scene to investigate a fatal car accident, they begin to suspect foul play was involved. Both starving, Liv and Major consume the brains of the accident victims, a well-meaning father and his angsty teenage daughter. Meanwhile, when Clive is brought in for questioning about a family that was murdered, he’s forced to reveal his past history with them. Lastly, Peyton extends an olive branch to Ravi, and Major hits a road block in his search for Natalie.
To help Clive solve the murder of a lifestyle guru, Liv consumes his brain and takes on his zen approach to life. Ravi’s old boss, Katty Kupps, is getting closer to discovering the truth while also getting closer to Ravi. Meanwhile, Blaine and Peyton continue their budding friendship, much to Ravi’s dismay. Lastly, Major is struggling a bit at his new job.
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.
Liv and Blaine come to the rescue of one of their own. They consume the brains of a conspiracy theorist and paranoia ensues. Meanwhile, as they continue to search for conspiracy theories that may or may not exist, Liv researches Major’s new friend. Finally, Ravi makes a surprising discovery of his own.
It’s a real-life game of 'Clue' for Liv after she eats the brains of a despicable dowager and must determine which one of her disgruntled servants killed her. Clive and Bozzio are struggling to maintain a healthy relationship. Meanwhile, circumstances place Major and Liv in opposition to one another.