In the early years of his presidency, François Mitterrand launches ambitious construction projects to leave his mark on France. Danish architect Otto von Spreckelsen unexpectedly wins the competition to redesign La Défense, setting off a collaboration marked by artistic and political tension. Stéphane Demoustier recreates 1983 with precision, portraying the balance between vision and diplomacy. Michel Fau, Claes Bang, Xavier Dolan, and Swann Arlaud deliver outstanding performances in this portrait of creation and conviction.