Porchezhiyan (Prabhu Deva) is a car driver and the sole breadwinner of his family, which includes his wife Rani (Inbanila) and daughter Yazhini. Rani, an ambitious woman, is not happy with her husband’s generous and lackadaisical nature. On the other hand, Chezhiyan, an ardent devotee of Periyar, believes in the welfare of society as a whole, which Rani cannot agree with, but Rani makes sense most of the time as Chezhiyan’s ideologies often fail to feed their little daughter. One day, while Chezhiyan is on the way back from a long trip, he rescues a businessman named Soundararajan (Prakash Raj), who met with an accident. After Chezhiyan ensures medical treatment to Soundararajan, he happens to meet Jayanthi (Bhumika), Soundararajan's wife, when he is about to leave. He hides himself from her, but the sweet and sour memories that he had with her leave him haunting even after he reaches back home. Further, things proceed in such a way that Chezhiyan gets to meet Jayanthi and Soundararajan. The fate which once separated Chezhiyan and Jayanthi is bringing them closer, though they are aware that they cannot be lovers anymore like they were in the past.