A tragic disaster usually reveals the soundness of the infrastructure system in the society where it happens, like the Sichuan earthquake in China in May of 2008. Hundreds of children lost their lives in the collapse of the Muyu Middle School dormitory. Who Killed Our Children visits the place where the exhumation is still going on, and meets the parents of lost children, suffering from their anger as well as sorrow. They raise questions against politicians who seem to be covering up and distorting the truth about the disaster. This courageous film urges viewers to consider the social duty and ethics of the documentarian. (NAM In-Young)