On the day he agreed to sign a mutual divorce in court Siddharthan who is also a lawyer cheats on his wife Lakshmi and goes on an inland drive. He urges Lakshmi to postpone the divorce citing their daughter Tara's future but the attempt fails. On his way back he meets Sathi and her dumb daughter who are leaving their home due to marital issues. The meeting changes Siddharthan's outlook on life.