Daisy is a teenage love story set in a boarding school in Ooty. The movie follows the plot of Pradeep, a trouble maker who plays a prank on Daisy, a new comer to the school. Eventually they fall in love and Daisy tries to help Pradeep to come out of his over aggressive behaviour.

Raghu, an atheist archaeologist, and his father goes to an isolated village for research, his father disappears mysteriously and Raghu finds out a strange prophecy : God will come to earth on Purnima day at the Nagakali Amman temple and the people who will submerge completely under the waterfall near the temple will be cured of any disease. His colleague Pathma informs her blind Journalist friend Divya and the news reaches the public. Pathma is in love with Naveen, in the final stages of cancer. Soon, an atheist terrorist group, led by Saravanan, try to destroy the temple. Saravanan's sister and brother-in-law were brutally killed by the temple's donor. Police officer Hari, Divya's brother, is charged with eradicating the terrorist group. Pathma believes in this prophecy, gets married to Naveen and takes him to the temple. Divya compels Hari to come with him to restore her sight and he agrees. A race against the clock starts.

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.