Circle Inspector John Luther is an honest and efficient police officer posted at the Munnar police station. His sister Leena is having an engagement ceremony but as usual he is late as he is a committed workaholic police officer who always gives primary importance to his duty. He arrives home late in the night and is reprimanded by his father for not reaching on time as he is not that happy with John's workaholic and hectic schedule. The next day he leaves soon after the function is over. John is in charge of the investigation of a motorbike accident that happened the night before where the driver Prakashan died on the spot but the pillion rider is missing. Using CCTV visuals and photographs taken by the passengers of the bus on which the body fell, they identify the pickup truck which hit the bike. But the pickup driver said he left the pillion rider on the road and does not know what happened to him.