New Delhi, March 8 -- Director Sujoy Ghosh takes charge of the Hindi language adaptation of Oriol Paulo's 2016 Spanish crime thriller Contratiempo ("The Invisible Guest"), and works in enough changes to smoothly localise Badla. A revenge story with a murder mystery at its core, the film follows a three-hour conversation between Badal Gupta (Amitabh Bachchan), the lawyer entrusted with defending murder accused Naina Sethi (Taapsee Pannu)....