Bezubaan is a romantic family drama. The movie follows the story of a young woman named Kalpana (Reena Roy), who is married to Kumar (Shashi Kapoor). The two are happily married, but Kalpana’s life takes a turn and she faces a turmoil, when Kumar’s best friend threatens her about revealing her darkest secret to her husband, which is about her one-night stand with her lover in college. Kalpana tries her best to keep the secret from her husband and save her married life, but how long will she succeed in keeping this secret? How will Kumar react to this information?