Richard purchases an old bungalow called Maharani Kottai. It is supposely haunted. In spite of the warning from the people around him, he buys the bungalow for a thrill.
Kabali, a fisherman, is both revered and dreaded. He falls for Suganthi, a chorus singer, and tries to woo her. Sundar, a rich man, is a womaniser and is able to have any girls he wants by money or by force. His mother sympathizes with Suganthi and decides to get her married to Sundar. When Kabali is about to declare his love, she announces her marriage. What transpires later forms the crux of the story.
A young couple needs to get the rivalry between their families sorted out so that they can get married with full consent of their parents.
Sekar who works at an IT company in Chennai gets bitten by a neighbourhood scientist's dog, and their souls swapped.
