Rajesh Subramaniam and Rajiv Samuel hated each other's guts in college, right from the time they first saw each other. Both were heroes in their own rights, loved and respected by their respective followers. The difference being that Rajiv was a darling of the girls and the staff of their college, whereas Rajesh was the perennial rebel. The last day of college apparently brings to an end their conflict as they separate, hoping never to cross each other's path ever again. But was that to be… Rajesh comes back to Chennai, joins his grandfather who runs a library and begins to enjoy life with his childhood friends.

Life remains mundane until the day he meets Reena Joseph. Like a flash of lightning, she enters his life and thereafter becomes the very reason for his existence. Except, she is the forbidden fruit… and like all things forbidden, she too becomes the apple of Rajesh's eye, and he pursues her relentlessly knowing very well that she is soon to be engaged to a guy from America… But destiny sits back with a smile and with a smug statement on her face; she prepares to see the drama unfold, as the guy from America is none other than Rajiv… and the battle begins on a war footing… They say that there is a thin line between love and hate... minnale...