Well, the real story behind 'Evil Dead' has to do with Raimi's creativity and his desire to make a horror film that would stand out. He came up with the idea of a group of young people in a remote location being haunted by demonic forces. The film uses a lot of practical effects to create the horror, like the creepy make - up and the possessed movements of the characters. It became a cult classic because of its unique blend of horror, dark humor, and over - the - top gore.
Evil Dead isn't based on actual events. It's a work of fiction that takes elements from horror and fantasy to build its terrifying narrative. No true events inspired it.