Kabali, a 55 year old man, is released from the prison after serving a life sentence for 25 years. He used to be a rich man who did a lot of good to the people of Malaysia. He belongs to a Malaysian Tamil family that used to work in rubber plantations. He elevates himself by becoming the first generation learner of his family. He goes abroad to study to be a lawyer. He comes back to fight cases for people free of cost. When he comes back he falls in love with a young woman who works in the plantation. She elopes with him when her family makes arrangement for her to marry somebody else. They start a new life together.
Kabali’s life and work earns him a lot of enemies. His enemies want him dead. They want to stop him from doing good work. While Kabali and his wife are getting ready to receive their first child his enemies turn his best friend Anthony against him. Using this situation the enemies attack Kabali, his wife and their friends. Kabali’s wife is dead. Kabali gets arrested. Kabali’s enemies flee the country.
Kabali gets out of the prison after 25 years. He is welcomed warmly by his friends who pledge their support for Kabali. He then traces back his enemies and settles scores with them.