Deewanapan is a romantic drama starring Arjun Rampal and Dia Mirza. Suraj Saxena lives with his family in a hill station. One day a girl named Kiran comes to the hil station on a trip with a group of friends. Suraj and Kiran meet each other during this trip and fall in love. Kiran goes back to her home. Later Suraj and his family relocate to Mumbai and Suraj enrolls in a college and Suraj and Kiran meet up again. But Kiran's father Ranvir Choudhary does not approve of this relationship and does everything possible to harass him and his family. Will Kiran's father ever allow Kiran to get married Suraj?