The film is based on the lives of Bengali's across the world, especially on those settled abroad. It attempts to delineate the pain and dilemma of Bengali's estranged from their places of origin. It seeks to explore sensitive souls singing to the tunes of Tagore.

Antaheen follows the lives of three couples in tumultous relationships, who lead different lives but are connected by the infinite struggles and pain each of them goes through.

Three generations of a family live together but they are very different from each other. The three young sons learn various lessons from life and end up as better human beings.