The film begins with Siva (Rajinikanth) and John (Raghuvaran) as kids, they are close friends like their fathers, in spite of their religious differences, one being Hindu and other Christian. A villain kills their families except for Siva, John, and John's mother, but John does not know that Siva and his mother were alive and vice versa. 20 years later, Siva falls in love with Parvathy (Shobana) and marries her. John is a hired goon who will do only good deeds. John is hired by the same villain to kill Siva and during the fight both get injured and finally they come to know that they are childhood friends. Eventually, both of them unite and fight the bad guy who killed their family.