Based on the best-selling Indian Bengali novel Narak Sanket written by Debarati Mukhopadhyay, bimbette engineer Rudrani is invited to London by her publisher to inaugurate the international edition of her book on cryptography. She meets an elusive man, Schumacher, who requests her to decrypt the puzzles left behind by her grandfather — clues that can lead to a cure for cancer. While Rudrani, along with her engineer husband Priyam, takes... see more