Sanjay Ramasamy (Surya Sivakumar) is a rich tycoon suffering from short term memory loss caused by being hit when trying to intervene on his girlfriend`s murder. Because of the severe injury his memory can only last for fifteen minutes and he doesn`t remember events or incidents that have happened before in his life. He can now only live a comprehendable life by tattooing notes on himself and taking pictures of things with a Polaroid camera to remind himself of the incidents that have happened. His story in unraveled by a police officer (Riyaz Khan) who is hunting him due to several murders he has committed while trying to find his girlfriend`s murderer through his diary. His story has also stirred the interest of a medical college student Chitra (Nayanthara) who is searching for a patient with an "interesting" record for her college project. Chitra comes to know about Sanjay`s love with Kalpana (asin) a model cum activist. When Kalpana discovers child racketeers she is killed by L