Calcutta is in political turmoil and it is turning violent. The city is also home to Vasant Sena, a religious cult with a charismatic leader and militant devotees, engaged in drug-fuelled sex rituals. As bodies of girls, their hearts cut of their chests, start appearing all over Calcutta, ACP Ashutosh and his deputy Pradeep are assigned the case. Soon, they find themselves spiralling into a mesh of double faces and blind alleys, even as the machinery of the state and the police turn against them. Can they catch the killer before the killer catches them?