Hélène (Mélanie Thierry), a businesswoman in her late 30s living in Nancy with her husband and daughters, achieves professional success but feels unfulfilled and burned out by corporate life. Returning to her home region in eastern France, she reconnects with Christophe (Bastien Bouillon), a high school crush who still lives in their small hometown working as a salesman. Despite their vastly different life paths and social backgrounds, the two begin a passionate extramarital affair, confronting class dynamics, nostalgia, and midlife existential crises.