The film starts with a flashback. ACP Bose (Karthik) is a sincere police officer happily married. He lives with his parents and younger brother Velu (Arun Vijay). Velu is a college student, and he falls in love with his classmate Anjali (Dhansika). Enters Umapathi (Chandrasekar), the villain who is notorious for settlements and land deals. Anjali comes across Bose when she is on a field trip from her college with her friends. She gets friendly with his daughter Pinky, who tells her that she would get her introduced to her uncle Velu, and they would make a good pair. It turns out that Velu studies in Anjali’s college and soon after, they come to know each other and get close.
Bose investigate the case of Umapathi, whom no one has been able to touch. He is even involved with a land deal involving crores of money which is completely illegal and others including the DIG is involved. When the chairman of the bank who has lent money for the deal demands the money back as the deal has not worked, Umapathi eliminates him.

Parthasarathy (Karan) is the son of a cook and a political science graduate. He aspires to become a Minister. His mimicry skills get him acquainted with the Chief Minister, who comes to his village for a meeting. He impresses him to become local leader of the party. This incurs him the wrath of Thamizh Sakthi (Nasser), a leader of the same party, who wants to promote his younger brother.
Turn of events lead to Thamizh Sakthi helping Parthasarathy become MLA with a promise that he should be with him and support him in all shady deals. As it happens Parthasarathy now becomes a Minister. Their corrupt ways earn them money.