Pet Sematary: Bloodlines

In 1969 Ludlow, Maine, a farmer named Bill Baterman drags the body of his son Timmy, who died by suicide after returning home from the Vietnam War, down into the pet cemetery, and buries him. Moments later, their dog Hendrix senses something and digs near Timmy's grave, where a hand bursts out and grabs the dog.

Jud Crandall lives with his parents Dan and Kathy, and is dating a young woman named Norma. He is set to leave Ludlow to join the Peace Corps in Michigan. While going into town with Norma, Jud runs into Bill and finds a photo of himself as a kid with Timmy and another local young man, Manny Rivers, who lives nearby with his sister Donna and also has aspirations for leaving Ludlow. Bill makes it seem like Timmy has been honorably discharged and has returned home.

The next day, Jud and Norma head off for their trip. They find Hendrix in front of the car, looking filthy and growling at them. They walk the dog back to the Baterman house, where they see Timmy. Hendrix bites Norma's arm, and Jud takes her to the hospital. Manny appears to hear noises from deep in the crops and sees blood dripping off a sunflower before he trips and impales his hand on a large thorn. Jud runs into Manny outside the hospital and tries to talk to him about Timmy.

Manny suggests that Timmy may be suffering from PTSD from the war. When Jud returns to the Baterman home, he finds Timmy standing above a hog that has been gored to death, before seeing Bill and telling him about Hendrix. Meanwhile, Timmy is in the basement, writing down the names of several people in Ludlow with blood. He whispers to himself about killing them before they kill him.

Later that night, Officer Marjorie Washburn goes home and sees Hendrix there, with Timmy mocking her father's suicide. She calls Ludlow's mayor Hannibal Benson before the dog attacks her, though she survives after killing Hendrix. Donna is stalked and attacked by Timmy at home, where he chases her into the crops before grabbing her. Jud and Manny go to a priest, who tells them about the history of Ludlow and the pet cemetery. In 1674, the Mi'kmaq tribe lived on the land. Ludlow, for whom the town was named, was a settler who disappeared. His men found him after he was buried in the pet cemetery, feasting on human flesh before he is killed again for good. Jud confronts his dad with this knowledge, and he learns that the ancestors of the town's inhabitants have always guarded the town's secret in the hopes to keep others out of there.

Timmy buries Donna in the cemetery, leading her to rise up as an undead monstrosity. She goes to Norma's hospital room and reveals her decaying skin to her. Donna runs after Norma and kills a doctor before cornering her in the main office, where she starts to choke her. Jud later finds out Norma is in trouble while Dan tries to round up Mayor Benson, Marjorie, and Sheriff Anderson to find and kill Timmy, as Manny joins the group to find Donna. They enter the Baterman home after Bill agrees to help. Timmy kills Mayor Benson, Marjorie, and Anderson, while Donna fatally impales Dan with his own rifle. Manny shoots his undead sister, killing her.

Jud and Manny join Bill as he guides them through a tunnel that Timmy built, which is also where Norma has been left tied up while the hole she is in is filling up with mud. Timmy finds the three, and when Bill attempts to put his son down, Timmy disembowels him. Jud and Manny resurface into the swamp, where Timmy goes after Jud and tries to drown him. Manny fires a flare at Timmy's head, killing him for good. Norma breaks herself out of her pit and runs back to Jud.

In the aftermath, Jud and Norma stay with Kathy to continue his father's work of keeping the evil out of town, while Manny leaves Ludlow.