Based on the book 'Conundrum' by Anuj Dhar and Chandrachur Ghose, the film revolves around Gumnaami Baba living in north India whom many believed to be the great freedom fighter, Netaji Subhash Chandra Bose. Helmed by the national award winning director, Srijit Mukherji, the movie deals with the great revolutionary's life and many conspiracy theories surrounding his mysterious disappearance.