When Rhesus monkeys are brutally massacred on the dusty streets of Kolkata by a troop of power-hungry Langur monkeys, Mico's life is changed forever. As he attempts to help the surviving Rhesus he becomes increasingly entangled in the secrets that lie at the heart of the corrupt Langur leadership. And, as more blood is spilt, Mico quickly realizes that choosing between right and wrong will not be as easy as he first thought.