Revati Karkhanis is a highly acclaimed best-selling novelist. Surrounded by a happy family and a supportive friend, she is in the process of writing her third much-awaited novel. But an accident in the past has left Revati emotionally disturbed. Her fragile mind begins to play tricks on her and she gets pulled into a world of mind games, hallucinations, and strange visions. Will Revati fight back using the only weapon she has-her immense writing talent? Or will she be the helpless victim of the tricks her mind plays? A psychological entertainer, Gumnaam Hai Koi takes the audience on a thrilling roller coaster ride of emotions.