The life of four best friends in Paris: Antoine (a gym school teacher), Jeff (director of a monthly journal), Alex (Jeff's associate in the monthly journal and a Don Juan) and Manu (owner of fine food store). Their time is shared between their respective jobs, their relationship with women (their own and others...) and the times they meet together to discuss about life and play sport lottery.

Alex, Antoine, Jeff and Manu. Four friends, four years later. Their relationships, friendship, shared secrets, feelings of guilt and their desire to change and improve.

Alex, Antoine and Manu meet Jean, a loner who ignores the pleasures of friendship. Little by little, they learn to know each other, to appreciate each other. Jean is moved by the complicity and affection that fuels the relationship with his new friends.

Guided by a letter from an childhood friend, a young man visits places and people from the past marked by history and commitment. He then meets other people throughout the night, looking for ways to act and imagine collectively.