A pure whodunit, the film’s basic story is simple – a revenge drama. Kolkata is jolted by a series of gruesome murders. The killings seem to have a pattern – the victim is kidnapped, then killed slowly and their heart taken out. The latest victims are members of the Kolkata police force.
The police are at a loss. A criminologist, Kingshuk, is then invited by the force to give them some insights and break open the case. He tries to find who the real person is, the one behind the mask.