Raw and fiery, this gritty romantic thriller follows the fluctuating fortunes in the life of Tarpaulin Murugan (Aari), a highway robber, who steals from lorries that ply on the highway near Periyakulam. He is so skillful that the lorry owners re-route their vehicles to go through a newly constructed highway, which becomes beneficial for Manga (Shivada), a young and enterprising dhaba owner.
Meanwhile, the place gets a new police officer, Masanimuthu (Prashant Narayanan), a cold-blooded and corrupt cop. He lusts after Manga and tries to fuel a tiff between her and Murugan, who loathes him completely, for his benefit. But Murugan double crosses him, and saves Manga from dishonour and this makes her fall for him. This enrages Masanimuthu, who plots his revenge by making Murugan the scapegoat in a robbery involving the goods of a fearful big shot. Will Masanimuthu succeed in destroying the lives of Murugan and Manga?