Are serial killers born with a genetic disorder or do their upbringing and surroundings make them one? It is a question that the Bhopal Police is struggling with as they interrogate one of the deadliest mass murderers of our times. Aadesh Khumra has confessed to killing at least 33 truck drivers across 4 states. What made a soft spoken tailor by day turn into a psychotic butcher by night? He says he started because he needed the money from his victims but then the thrill to kill became an addiction.