Sridhar Vasudevan (R. Madhavan) is a middle-class family man employed in a bank. He is very idealistic, principled, and recognizes a deep sense of belonging with the society he is part of. He gets annoyed and flustered by illegal and semi-legal activities happening around him. His wife Vatsala (Sangeetha) persistently demands he should be more ‘flexible’ and make more money, but Sridhar does not accede. He endures the illegal and semi-legal activities around him because he anticipates a change in the mindsets of people. He feels that over time, they will become more honest, socially aware and willing to make small personal sacrifices for the greater good of all (like him).
Vatsala is a typical middle-class housewife and a caring mother of two children, Varsha and Varun. Societal imperfections and related problems matter very little to her. She is more concerned about her reactive husband, thinking about ways to save him from the effects of his angry outbursts and to steer him away from his impractical thoughts and deeds.

The film opens with Kinathadi Kaali (Ramya Krishnan) establishing her powers with a couple of sequences, including reducing a screen scorcher (Nassar) to a pale shadow. Cut to the present, Priya (Keethika), the intelligent daughter of Pichumani (Ramji and Gayathri (Sangeetha), who treat her like the apple of their eyes. Soon, she is possessed by the spirit of Savithri (Kaveri), who is ditched by her fiancé Nanjappan (Riyaz Khan). With the help of Kaali, it is the now the turn of Savithri and her brother Karuppu (Ganja Karuppu) to take revenge. How they punish Nanjappan and his sorcerer friend Mandiramoorthy (Shafi) is the rest of the story.

Karthik’s wife Priya is being harassed by a police officer, due to which she ends her life. However, Karthik is held responsible for her death and imprisoned, where a social worker offers to help him.

Annamalai’s photograph appears in a newspaper along with an interview of Maria (Rachana Maurya), who claims herself to be a saint propounding a new faith. She describes him as her God, Vaali. A mafia-turned-spiritualist she attributes her transformation to him in the interview. This prompts three women to come calling Maria all the way.
The three women were cheated by him recently and they probe Maria of Annamalai’s whereabouts. The three women, Sakhi (Sruthi Prakash), Nisha (Swetha Menon) and an actress Deepa (Lakshmi Rai) try to prove Maria that he was a cheat. However she doesn’t believe them.