The Demon Disorder

Graham is a man haunted by his past since the death of his father and the estrangement from his two brothers. Jake, his middle brothers contacts Graham claiming that something is horribly wrong. Phillip, their younger brother is possessed by their deceased father. Graham reluctantly agrees to go and see for himself.
With the three brothers back together, they soon realise they are unprepared for the forces against them. With Graham forced to accept that their younger brother is indeed possessed, they soon learn that the sins of their past will not stay hidden. But how do you defeat a presence that knows you inside and out? An anger so powerful it refuses to stay dead? A rage that wants revenge on the sons that murdered him.