The mayor of Lyon, Paul Théraneau, is in a delicate position. After 30 years in politics, he is running out of ideas and is faced with a feeling of existential emptiness. To overcome this, Paul hires a young and brilliant philosopher, Alice Heimann. Then follows a dialogue between two diametrically opposed personalities who will turn their certainties upside down.
Sylvie, a nearly sixty-year-old woman, has fallen in love with Michel, a thug she marries in prison. The couple dream of starting again with a clean slate by opening a flower shop. But Sylvie’s son Abel, convinced that Michel will fall into a life of crime, disapproves of this relationship.
Sophie is a brilliant student. Encouraged by her maths teacher, she leaves the family farm to attend a science preparatory class. Between new encounters, successes and failures, and faced with fierce competition, Sophie realizes that her dream of joining the Polytechnique represents more than an entrance examination but a true challenge of social climbing.
