The film begins with Raghavan (Raghava), who hails from Coimbatore, joining a medical college in Chennai as a first-year student. In his hostel, Raghavan starts to remember his school life and his first love. Raghavan and Deepika (Deepika) studied in the same class and they were good friends. Raghavan hailed from a middle-class family while Deepika was from a rich family. Raghavan and Deepika then fell in love with each other but they didn't have the courage to convey their love. The last of school, Raghavan sneakily put a love letter in Deepika's book and Deepika did the same thing. Unfortunately, the two failed to read the love letters and thought that their love had failed. Thereafter, Vilvanathan (Guhan) gave Deepika sleeping pills and he convinced Raghav and his friends that she had committed suicide after failing her exam. The grief-stricken Raghav was unable to bear the constant reminders of his lover that his school and town were filled with. Raghavan's father then got a transfer to Delhi and Raghavan moved there but he failed to get a seat in any college in Delhi, so Raghav returned to Chennai to join a medical college. Vilvanathan is hell-bent to save his family's prestige so he threatens his sister Deepika to kill her lover Raghavan if she is still in love with him. When Vilvanathan came to know of Raghavan's return, he sends henchmen to kill him and decides to send Deepika to study in the US. Raghavan is then stunned to encounter his lover Deepika alive and he successfully gets rid of Vilvanathan's henchmen. Finally, Vilvanathan arrives and beats Raghavan up. Deepika, who first begs her brother to spare him, encourages Raghavan to fight him back and Raghavan defeats him.