Rajadurai (Vijayakanth), an honest police officer arrests and humiliates Mayandi (Anandaraj) who swears revenge. Once out of the prison, he kidnap's Rajadurai's son Vijay. He later brings him up as Arun along with his own son in such a way that Vijay would do anything for him. In fact, Mayandi uses him as a weapon against his own father.
