Vidya Sinha (Vidya Balan) has only one obsession in life. She wants to see her teenage daughter Mini, who is paralysed waist-downwards, walk again. But, is this scenario as obvious as it seems? Or is Vidya an impersonator of Durga Rani Singh from Kalimpong, who is wanted for kidnapping and murder?
Kolkata-based Sheela Bhowmik feels isolated and neglected, and decides to leave her busy film-maker husband, Raja, to spend sometime with her friend, Renu, her mom, and then subsequently travels to Kashmir to spend some time by herself. Raja gets involved in a new movie depicting the life of Gautam Buddh, and is on the look-out for a male child to play the character. He does find one, a young school-going lad, Abhirup Mitra; introduces him to the Producer, Vikram; as well as other crew including beautiful Anjali, who has a crush on Raja. Neither Vikram, Anjali nor any of the crew are aware that Raja is the prime suspect in the abduction of Abhirup.
When a Kolkata surveillance specialist and his roommate install a small camera in the home of their beautiful neighbor, they somehow become terror suspects in director Buddhadeb Dasgupta's cutting commentary on CCTV society.
