Biresh (Subrata Dutta), an investigating officer in a finance company, is at heart a bohemian with no rigid values in life. In love, he is caught in a psycho-sexual relationship with high-society call girl Nita (Tannishtha Chatterjee). In his office, his position becomes bleak as he refuses a loan to an influential person. He starts drinking heavily and starts visiting Sonagachi, the infamous red-light area of Calcutta with his painter friend Hiren (Shiladitya Patranobish). He gets attracted towards a model, Iti (Payel Sarkar). Biresh, in a bout of self-destruction, vents his anger and frustration by strangling Nita and stages his alibi through Iti. The police start investigating but are unable to establish any motive behind the killing.
