Thandavam (2002)

Embedded with mystery and suspense, this family-oriented action drama delves into the life of Kasinadhan, a martial arts expert who runs an Ayurvedic health clinic. While he leads a simple and humble existence, his elder brother and patriarch of the family, Swaminathan is an exceptionally successful man. Suave and savvy, the enterprising Swaminathan has built a multinational business empire, that he runs right out of the village. However, to everyone's shock and dismay, especially politicians Shankar Das and Gounder, Swaminathan dies all of a sudden under mysterious circumstances. Now, it is up to the unassuming Kasinadhan to not only take over the reins of his brother's mighty business empire, but also investigate into the real reasons behind his mysterious death. Can a simple man who runs a small Ayurvedic health clinic succeed in such an immense task?