NRI corporate Sundar Ramasamy comes to India to vote, only to learn that his vote has already been cast. While he reclaims his right legally, it also sets in motion a chain of events that eventually lead to him entering the political fray, trying to change the system.
Kathiresan aka Kaththi, a criminal, escapes from the Kolkata prison and comes to Chennai, where he comes across his doppelganger Jeevanandham, fighting for his life after being shot at by unknown men. Kathir decides to pass off as Jeeva and make away with a lump sum amount but once he realizes who Jeeva really is, Kathir turns a crusader.
Sanjay a rich tycoon suffering from short term memory loss due to being hit by a metal pole when trying to intervene on his girlfriend’s murder. Because of this his memory can only last for 15 minutes and he doesn’t remember events or incidents that have happened before in his life.