On New Year's Eve 2007, a sleepy town in Kerala called Chelembra becomes the centre of a national headline when India's biggest bank heist takes place, with the robbers inspired by a Bollywood film and making off with Rs 8 crore and 80 kg of gold. This true-life crime thriller follows both the planning and execution by the mastermind criminals and the intense investigation by a Kerala police team led by P. Vijayan, as they engage in a thrilling cat-and-mouse game to solve the crime.