An accident survivor wakes from a coma and confronts old, uncomfortable memories.

Fourteen years after the Paris Commune, a young man from the country meets former insurgents. He gives them an innovative device that violently brings back ghosts from the past.

Mathieu is a young and talented black box analyst on a mission to solve the reason behind the deadly crash of a brand new aircraft. Yet, when the case is closed by authorities, Mathieu cannot help but sense there is something wrong with the evidence. As he listens to the tracks again, he starts detecting some seriously disturbing details. Could the tape have been modified? Going against his boss' orders, Mathieu begins his own rogue investigation - an obsessional and dangerous quest for truth that will quickly threaten far more than his career...

A look back over nine years of the Syrian Civil War, an inextricable conflict, like a black box, due to the competing interests of the many factions in presence and those of the foreign powers.