Johnny (GV Prakash) suffers from a bizarre disorder that causes him to go weak at his knees at the mere sight of blood. So naturally, he stays away from violence. He even considers joining a seminary to study theology and become a priest, a plan he dumps in a hurry when he comes across a pretty girl. Meanwhile, an ageing gangster lord in the city is in search of a suitable heir to his throne. As fate would have it, he zeroes in on Johnny. The peace-loving youngster has to rise to the expectations of his family, friends and society, and turn into a violent gangster.