Do Baaraa is a mystery suspense thriller and a remake of the 2018 Spanish film Mirage which narrates the story of Antara (Taapsee Pannu) who works as a nurse and moves into a house along with her husband and daughter. While checking into their home Nandini finds an old television set in one of the rooms left behind by the former residents in which she sees a 12-year-old boy talking to her who witnessed a death during a thunderstorm and seeks her help. Disturbed by what is happening around her Antara seeks to police and medical help that throws open an unsolved murder mystery that took place 25 years ago with a connection leading to the neighbouring house. Does Anatara succeed in helping the boy or it's just her imagination? How she overcomes the countless unanswered questions that she faces forms the remaining part of this intriguing timeless thriller.