Sridhar arrives in Chennai to meet his childhood friend Kalyan seeking his help to settle his debts. Due to a chemical invented by a scientist, Kalyan becomes Kalyani. Will Kalyani become Kalyan again? Will Sridhar settle his debts?
Set in Ramanathapuram district, where Nana, the powerful gangster, tries to take control of the village. Kathar is not ready to listen to him and refuses to make peace with them. Will both survive the battle or not?