Synopsis: The film starts off by showing Shakthi successfully robbing a moving train by cutting a hole in its roof. The police department appoints about-to-retire C. K. Manickavasagam to find out the culprit behind the train heist. Meanwhile, private detective Diya, who works exclusively for criminals, investigates a separate robbery from the car of a young man called Malik, son of the crime lord Jamalhudeen. Diya eventually comes across a video showing Shakti’s face at the robbery.