The film, 'Insane' tells the story of a young man named Bijit Bhattacharya who is a mentally disabled person. But his words and actions doesn't seemed him to be so. He is jobless, his beloved left him, his family comprises of he himself, father and mother. He has a camera on which he filmed a video of himself and confessed his life's tale which to him is very normal but not to any normal human being.