Natasaarvabhowma

When Gagan (Puneeth Rajkumar), a journalist, moves to Bangalore, he decides on living in a house that is probably haunted. However, situations around him seem to confuse him since he starts behaving strangely. Gagan attributes a different personality and tends to forget what happened during that period. But, is this really a matter of a spirit conjuring him, or is it a matter of split personality?