Aranmanai is about a family that wants to sell their ancestral home. The supernatural elements they discover there in the aranmanai (palace) lead to some bone-chilling moments.
After being turned down by the ruling Britons, the rightful heir to a famous dynasty inspires local villagers to build a dam themselves. A small-time thief reforms after learning about the role played by his grandfather in building a dam.
A wealthy family moves into the Vettaiyapuram palace to renovate their ancestral temple and perform a pooja, unaware of that it will reawaken the feud between a classical dancer, Chandramukhi and Vettaiyan Raja from centuries ago.
