The cullens

The cullen family household had been abandoned for years and the town had been empty. It has been said that a great Evil once descended over the farm, and devoured the owners souls. generation after generation of the cullens lived on the farm and generation after generation they were driven insane. Out of no where a surge of anger would take them over and they would go on a killing rampage. Most of the people in the surrounding towns were killed but a few survived to tell the tale of the cullens. It is said that as each member was taken over they would kill the townspeople and hide the chopped up bodies within secret cavities in the walls. to this day no one knows exactly what the evil is, where it came from, or any it chose to attack the cullens.
Now a new family has arrived, completely unaware of the evil within and the history behind the house. How long will it be before the evil is unleashed and starts to take its toll on the new family? What is the evil? a ghost? a demon?