Storyline:Eight years ago, John Biswas's (Amitabh Bachchan) granddaughter Angela was abducted and killed, which completely threw him and his wife Nancy (Padmavati Rao) off track. While most have already given up hope of ever finding the perpetrators, John still firmly believes that one day he may take revenge for the death of his granddaughter. He tirelessly asks the responsible police station for news about the investigations almost every day, but is now only unnerved by the officials. Only the ex-cop Martin Das (Nawazuddin Siddiqui), who is now working as a priest, John supports in his search for the criminals, because he was also deeply affected by the death of Angela. When a new kidnapping occurs, similar to eight years ago, John, Priest Martin and investigating policewoman Sarita Sarkar (Vidya Balan) are immediately alerted. Will they finally be able to seize the perpetrators after such a long time?