BERLIN is the story of a deaf and mute man’s bond with a sign language expert. The year is 1993. Ashok Kumar (Ishwak Singh) is arrested in Delhi by the ‘Bureau’ for spying on behalf of a foreign intelligence agency. The investigation is headed by Jagdish Sondhi (Rahul Bose) in the Bureau. Ashok is deaf and mute and hence, a sign language expert Pushkin Verma (Aparshakti Khurana) is deployed to the Bureau office. His job is to ask questions to Ashok in sign language and find out who he’s working for. While questioning him, Pushkin forms a bond with Ashok. The mention of ‘Berlin’ crops up during the investigation and it intrigues Pushkin. He soon finds himself caught between a tussle between the ‘Bureau’ and the ‘Wing’ as well as a plot to assassinate the Russian president. What happens next forms the rest of the film.