In 1957, on
Skull Island, zoo official Stewart McAlden and his team attempts to smuggle out a Sumatran rat-monkey, a
hybrid creature that resulted from the rape of tree monkeys by plague-carrying rats. While fleeing from the island's warrior natives, who demand the creature's return, Stewart is bitten by the rat-monkey. The crew, fearing the effects of the bite, dismembers and kills him. The captured rat-monkey is then shipped to
Wellington Zoo in
Newtown. In
Hataitai, the meek Lionel Cosgrove lives with his domineering mother Vera in a Victorian mansion. To Vera's dismay, Lionel falls in love with Paquita María Sánchez, a
Spanish Romani shopkeeper's daughter. When the two go on a date at Wellington Zoo, Vera stalks them and is bitten by the rat-monkey, which she promptly bludgeons with her heel. Over the following days, Vera grows more decrepit and dies before reanimating as a ravenous
zombie. Vera devours Paquita's dog and kills the attending nurse, Mrs. McTavish, who also returns as a zombie. Although unable to comprehend what's going on, Lionel keeps them sedated with animal tranquilizers and locked in the basement. He frantically covers the mess as Paquita's grandmother comes over to visit and gives him a pendant for luck. Vera breaks out of the basement and is run over by a
tram. Lionel arranges Vera's funeral and burial, keeping her tranquilized to protect the mourners. Later, he returns to the graveyard to administer more tranquilizer, but is beaten by a group of
hoodlums who mistake him for a
necrophiliac. Vera bursts from her grave and attacks the hoodlums. In the ensuing commotion, the gang leader, "Void," as well as the local priest, Father McGruder, are bitten and become zombies, prompting Lionel to lock them up in the basement as well. After discovering that the nurse and priest have copulated and produced a zombie baby, Lionel breaks up with Paquita to keep her safe. Lionel's uncle, Les, arrives to confront Lionel over Vera's estate. In the basement, Les sees the tranquilized zombies and mistakenly believes them to be dead bodies. He blackmails his nephew into relinquishing the house and his inheritance. Despite Lionel's objections, he invites his friends over for a housewarming party. During the party, Paquita arrives to make amends with Lionel. After she discovers the zombies in the basement, Lionel explains the situation to her. She convinces him to use poison to kill the zombies. However, Lionel mistakenly injects them with an animal stimulant instead. The pair narrowly escapes as the invigorated zombies rush upstairs and infect the party guests. Lionel uses a lawn mower to mow through the zombies, while Paquita disposes of the still-hostile zombie body parts with a blender. Les enters the basement, where he is beheaded by Vera, who has now grown to monstrous proportions. Vera erupts from the basement and pursues Lionel and Paquita to the rooftop as the house catches fire from a burst gas pipe. Lionel confronts Vera and reveals that he witnessed her drowning his father and his mistress as a child, which caused his trauma. After he proclaims that he is no longer afraid of her, an enraged Vera stuffs Lionel into her stomach and prepares to kill Paquita. Lionel cuts his way out of his mother's body with the good luck pendant, causing Vera to fall into the burning house. Lionel and Paquita escape the burning rooftop with the help of the arriving fire brigade, and, after sharing a kiss, walk away in victory. ==Cast==