A serial killer terrorises the city of Kolkata and leaves behind verses of Bengali poetry. The police seek the help of a retired officer to unravel the case and find the perpetrator.

Prime leader of a campaign against a big government project is killed in what appears to be a road accident. An IAS officer is ordered to probe the incident and the veils of falsehood begin to drop.

When upright cop Arjun Maitra takes on Kolkata's feared don Bagha and his henchmen, he must battle a broken system and navigate bloody gang wars.