Initial idea for a horror movie

In the year 1990 a teenage girl called isabelle who had been abused by her dad one day had enough and turned on her dad and killed him. Isabelle then went down to her nearest graveyard and hung herself from one of the trees and thats where her ghost still remains. 20 years later in the year 2011 there was a group of 3 friends one of the girls lived in the house where it had all happened all 3 girls where in the front room making jokes and daring each other when they come across isabelle's dairy it then release her spirit and she then sets out to hurt them while reading though they come across apart about a a graveyard then the girls dare each other to go in. Not knowing that the had woken isabelle's spirit they go in where isabelle torments them the teenagers escape from the graveyard and head back to the house and isabelle follows will they escape from isabelle's spirit... and what will happen to them next....