Endrendrum Kaadhal starring by vijay and rambha. Vijay is the managing director of a large shipping corporation. He lives in a joint family with his father (Nambiar), two brothers (Radharavi and Dhamu), their wives and children and a spinster sister(Banupriya). He goes to Switzerland to stipulate a contract with 'Nizhalgal' Ravi and Raghuvaran. There he meets Rambha, Ravi's sister. The two fall in love.
Ravi approves of Vijay but when he expresses the condition that Vijay should stay with them after the marriage because India is not good, he refuses his offer and returns home. But later Raghuvaran and Rambha travel to India to mend fences. Raghuvaran learns that Banupriya had been dumped by Ravi for a better life and Vijay is just waiting for an opportunity to kill the man who distroyed his sister's life.
He devises ways of preventing Ravi from attending the marriage but later he tells Banupriya the truth. Vijay overhears this, but finally all problems are solved and the two lovers can get married.