The film is about a father, who drives his son away from home due to spiritual and astrological reasons. The boy leaves Tamil Nadu and takes refuge in Kasi. He (Arya) grows up in the midst of 'Saadhus' and 'Sanyasins' and becomes one with matted hair and unkempt looks. Meanwhile, realizing his folly, the father goes in search of his son to Varanasi. Shocked to see his son in such a state, he decides to bring his back to his home town. What he encounters in Tamil Nadu and the turn of events after he leaves Varanasi forms the story.
According to the reports, Bala has shot two different climaxes for the film. The originally planned one has the heroine giving up her life and the male protagonist literally 'eating' her flesh. However amidst doubts whether such an ending would go down well the Tamil audience, Bala has reportedly shot another climax and kept it ready!
The latest sensation of the Tamil film industry is Bala's Naan Kadavul. Ilayaraja's songs have already made the album as super hit and now the viewers are eagerly waiting for the release of the film.