A staunch devotee of Lord Hanuman, Udhayanidhi Stalin (Kathirvelan) is totally against marriage and romance. But one glimpse of the lovely Nayantara (Pavithra) and Udhayanidhi falls deeply in love. Nayantara, however, has a soft corner for Sunder Ramu, a long-time friend. Though Sunder Ramu has been pursuing Nayantara for over a year now, he is not in love with her. He just plans to have a good time and then move on. Udhayanidhi overhears Sunder Ramu bragging about his so-called conquest to a friend in a restaurant. Udhayanidhi tries to warn Nayantara, but she does not believe him and tells him to stay out of her life. Whether Udhayanidhi is able to save Nayantara or not is the rest of the movie.