The title basically says it all. It's the original movie The Evil Dead with the Teen Titans in place of the main characters of the film. Everyone is everyone, and some things are edited, such as the summoning of the deadites, and a different ending from the film. You'll see when you read it.

When Raven of the Teen Titans opens a cursed manuscript, she unleashed an army of darkness on Titan City. Now, the only man who can help her is Ashly J. Williams. Let the battle begin!