A group decides to test out a medical matter in the field of neurology. They choose India, as the population caters to their requirements of age, blood group and body conditions.
A doctor located in a southern town in Tamil Nadu, specialized in this field, takes it up to test and observe this medical matter.
The protagonist fits the requirements and is chosen as the 3rd subject. Due to a quarrel with a land mafia, he gets hurt and gets admitted in the exact same hospital where the medical matter tests are run. What happens next follows the rest of the plot.