On April 27, 1968, workers from the Rhodiaceta factory in Besançon gathered at the village hall of Palente-les-Orchamps to attend the screening of the film À bientôt j'espoir by Mario Marret and Chris Marker. This sound documentary reproduces the critical debate that followed. In June 1969, Pol Cèbe, the head of the Cultural Center of Palente-les-Orchamps, brought to this documentary a conclusion in the form of a report. Echoing an intense debate after the screening of À bientôt j'espoir, La Charnière by the Groupe Medvedkine captures those moments when workers expressed dissatisfaction with the way they were portrayed.