VS Raghavan is a siddha doctor, who is relentless in his search to develop a cure for cancer. He resides in Rameshwaram along with his grandson Appu Krishna. After many tries, Raghavan with the help of ancient medicinal transcripts is able to find a cure.
In no time, the information spreads across the state, and reaches the ears of 'Nizhalgal' Ravi, a well renowned doctor in Chennai. He pays a visit to Raghavan as soon as possible, and asks for the patent rights for the cure. But the Siddha doctor refuses to hand it over to him, as he finds out that Ravi's main intention is to make money with it, rather than help people.
Ravi at that point of time quietly leaves the place, but then sends Motta Rajendran to steal it from him. Fearing for the cure's safety, Raghavan urges Appu Krishna to take the cure, formula and medicinal transcripts, and spread the word to the rest of the world and common people.
Appu Krishna takes up the adventure and then travels to all the neighbouring countries. Meanwhile, Ravi follows Krishna to obtain the cure in one way or the other. The rest of the plot revolves around how Appu Krishna succeeds in this task.
Though Appu Krishna's stunts in all the action sequences are really appreciable. He as the main lead is a bad choice, as his penchant for acting is really poor. Both, 'Nizhalgal' Ravi and VS Raghavan has delivered a decent performance. Muksha is supposed to be the female lead, but she shares very little to perform. Take her out of the equation, and it still won't make a difference.
'Stunt' Jayanth, through Munthal, has tried to express that through new age medicine, scientists and doctors are hiding the fact that even dangerous and non-curable diseases can be cured by ayurvedic ways, as answers to all the questions have been predicted and written down by our ancestors.
Though his idea seems to be interesting, he completely fails in the directorial department, as he falters with the screenplay and has delivered a poor quality film. Jay Kirish has provided the tunes for the film, and both his background scores and the songs are below average. Raja has handled the cinematography department and his shots are decent.
In short, Munthal, is below average.