The film is set in a village named Kongankulam (Close to Alangulam), located between Rajapalayam and Sivakasi in southern Tamil Nadu. It entails two different dreams of two different people for one person. The main aspects of this film are of the selfless, deep love and admiration that Maari (Parvathy) develops for her cousin Thangarasu (Srikanth) and the love and expectations of a poor, hardworking father (Ram) to his son Thangarasu.

The film begins showing Maari happily married to her husband (Inigo Prabhakaran), a small shop owner. She leads an uncomplaining life with a smile on her face at all shades of events which fascinates even her husband. One day, she leaves alone to her village festival with the permission of her husband, who promises that he will follow her there after his business for the day has finished. When her mother asks why Maari came alone, she answers that she came early in order to see her cousin Thangarasu, much to her mother's dismay. On her way to see Thangarasu, she begins to reminisce of her past that includes her bold proclamation of her aim to be Thangarasu's wife from her school days - a time when they used to play together - that develops into her shy, unrequited yearning for him in her teenage years - a time when Thangarasu is an engineering student while Maari works as a labourer in her village's fireworks company along with her best friend Cheeni (Inbanila), a practical girl who at first advises Maari to be realistic, but later seeing her passion for Thangarasu helps her out in many ways as she could. By that time, everyone in her village knows about her ardent love for Thangarasu except for him. After many attempts, she fails at trying to confess her love to him or to even talk to him openly without feeling shy while he is away in city or in her village. However, Thanagarasu comes to realise her love after many incidents where people he knows tells him of this.