A book that belongs to the Hindu god of death, Yama, accidentally drops to earth. This book can be used to kill or save any human's life by writing his/her name in one of the pages of the book. Gopi, a young man, gets a hold of the book and abuses its powers for his selfish needs. Chitragupta, Yama's assistant, misses a book which contains all the details of human beings. The book falls into a city in Tamil Nadu. Brahmadeva orders Yama to locate the book within one month. Chitragupta fears that if the book is seen by the human beings, chaos will happen.

Thillai leaves his village to work in a bank in the city. He decides to marry Jeyakodi but unexpected complications put their relationship to the test.