Poovalli Induchoodan (Mohanlal) is sentenced for six years prison life for murdering his classmate. Induchoodan, the only son of Justice Maranchery Karunakara Menon (Thilakan) was framed in the case by Manapally Madhavan Nambiar (Narayanan Nair) and his crony DYSP Sankaranarayanan (Bheeman Raghu) to take revenge on idealist judge Menon who had earlier given jail sentence to Manapally in a corruption case. The story begins with Induchoodan released and his father & mother coming to stay with him.

Chanthu, a poor orphan and Aromal are cousins and belong to the Chekavar clan, a warrior clan who hire themselves out as duellers to settle disputes among the rich and powerful. Aromal, jealous of the much more talented Chanthu, makes life miserable for him and Chanthu decides to leave and live with Aringodar, a rival chekavan, as his pupil. When the two sons of a local landlord have a property dispute and decide to hire Aromal and Aringodar to duel it out, Chanthu has to decide where his loyalty lies - with the family of the uncle who brought him up or with Aringodar who provided him with sanctuary.

In the ancient village of Shivapuram, little Ananthan hears a tale from his mother, Gayathri (Revathi). She tells him that his family comes from a line of powerful magicians, and they are responsible for protecting nagamanikyam, a jewel on a serpent's head. The jewel, she narrates, lies in a secret place in the house guarded by snakes, including a tiny snake called Kunjootan. Years later, obeying the wishes of his dead mother, Ananthan (Prithviraj Sukumaran) returns to his ancestral village to light the lamps at Shivakavu, a dark and mysterious temple of Shiva.

Jagannathan faces several challenges when he goes to stay in Kanimangalam village. He promises the villagers that he will help in the preparations for the annual temple festival, but will his enemies leave him in peace?

Mithun Madhavan (Mohanlal) appears as a Mumbai-based Information Technology industrialist but a psychologist in reality. Priyan (Indrajith) is a software engineer working under Mithun. Priyan is in love with his uncle's daughter Dhwani (Parvathi) who was born and brought up in Chennai. The rest of the story deals with the disturbing events in Dhwani's life and how Mithun helps her overcome those.

Based on Vadakkan Pattukal, a collection of Northern Ballads of medieval origin.

Upcoming Malayalam movie, Chengazhi Nambiar