Matthieu is a young as well as skilled black box analyst on a mission to solve the reason behind the harmful collision of a brand-new airplane. Yet, when the instance is nearby authorities, Matthieu can not assist however pick up there is something wrong with the proof. As he listens to the tracks once more, he begins discovering some seriously troubling information. Could the tape have been modified? Going against his manager' orders, Matthieu starts his very own rogue investigation - an obsessional as well as unsafe quest for truth that will swiftly threatan far more than his job ...