Gaël, Laeticia and Jean Julien meet in Paris 40 years after the making of Enfants coureurs du temps, a film they shot as children with André S. Labarthe and Sophie Barrouyer. The reunion triggers memories of that shared filming; together they reflect on the traces that the film and their childhoods have left on them. The filmed faces of those three children overlap with their own adult gazes, the Paris of 1983 merges with that of 2023. Time thus becomes the main character in this film.