Despite not being based on one specific book, Fear Street Part 1: 1994 draws heavily from the first book in the Fear Street Cheerleaders saga, The First Evil. When Shadyside newcomers Corky and Bobbi Corcoran join the cheer squad, bad things start to happen after an accident at the nearby Fear Street cemetery. It's up to the sisters to stop the mysterious killer while trying to stay alive themselves.
Much like The First Evil, the protagonists in Part 1 have an accident involving a bus that leads to cheerleader Samantha Fraser bleeding on top of Sarah Fier's grave. Eventually, Sam is possessed by an evil spirit and turns murderous because of it. However, The First Evil's Sarah Fear isn't a vengeful spirit that died after being accused of witchcraft in the 1600s. No, the book's version of Sarah is a vengeful spirit bound to her best friend's body after a tragic identity switch in the 1800s.
