Kaaliyan has a sister who marries a young man without the permission from Kaaliyan and moves to Kolkata with her husband , where she faces unknown threats. Soon her brother Kaaliyan comes to the rescue.
In a tragic accident, Kathiravan loses his wife and his left leg. A few years later he decides to get a prosthetic leg with the compensation amount. Kathiravan's life gets more complicated when his daughter Magizh gets hospitalized.