The film opens with a new boy named Easwaran joining in Hari's class. Easwaran is instantly disliked because of his withdrawn nature. Hari picks a fight with Easwaran, and Easwaran breaks Hari's nose, and Hari brings his parents to school. Hari's mother, however, on coming to know that Easwaran is an orphan, tells him that she can consider him as his mother. However, in a few days time, she dies. At her funeral, Easwaran holds Hari's hand and consoles him. Years later, Hari (Kalaiyarasan) is in a long-time relationship with a college girl named Gayathri (Dhansika), while a demure girl named Revathi (Srushti Dange) pines for Easwaran (Prasanna), who ignores her as he fears that something bad will happen to her. The heroes make a dangerous enemy in the form of a local mayor's son, who they beat up and break his hands for harassing Hari's sister. Meanwhile, Easwaran accepts Revathi due to Hari's efforts. Just when everything seems to be going well, tragedy strikes at both ends. What happens next forms the rest of the screenplay.