Free Online HD YesMovies. David, a young novel writer, must deal with the mysterious disappearance of his brother Isaac, who was suffering from psychotic attacks, tormented by the belief that something or someone was stalking him. Days after the disappearance David finds Isaac's diaries and when reading them he begins to question if what his brother said could be true at the same time that he begins to suffer hallucinations which will take him to the psychological limit.