While the city of Kolkata is terrorized by sudden outbreaks of murderous insanity, TnT and co. begin their investigation. Taranath suspects that there is an occult angle to such mindless explosions of violence among normal people. On the other hand we trace back in time and find the source of evil. The roots beginning in the tumultuous 70’s during the naxalite revolution, a horror story of a monstrous crime and its horrible repercussions. The past is coming back for vengeance to turn the city of joy into a city of sorrows.