Rachel’s Death
In all versions of the story, Louis makes the unwise decision to bury his dead child — Gage in the novel and the ’89 movie, Ellie in the 2019 movie — in the pet cemetery, and they come back from the dead seeking blood. In all three stories, this zombie kid murders Rachel. But in the book and the first film, Louis kills the kid before burying his wife in the pet cemetery. In the 2019 movie, it’s zombie Ellie who buries Rachel and causes her to come back as a zombie herself.