Marс meets Sylvie when he misses his train to Paris. They roam the streets of a provincial town until morning, talking about everything except themselves. What a rare harmony. Marc takes the first train and agrees to meet Sylvie in Paris in a few days. They know nothing about each other, but it’s not a game. Sylvie comes to a place where they’ve decided to meet, but Marc never came. When he is looking for her he meets Sophie, not knowing that it’s Sylvie’s sister.