Insaan is a story of a small incident where a girl encounters that her brother has joined a transgender community. She is very close to him and has a deep emotional bonding of love, care and understanding. On the other hand, she is in an abusive relationship. Both the men in her life having contradictory characteristics reflect that being human is not related to the human body or gender; it is related to love, respect and to have a good heart. The movie also deals with gender identity issue, society norms, helplessness, and frustration of such people.