Isa is twenty: All her possessions fit in a backpack and she lives through hard times with a smiling philosophy: She arrives in Lille after wandering from city to city; looking for small jobs. Never the same ones and never for long. She meets Marie. Marie is also twenty and has always lived in the north. A loner, like Isa, but for different reasons. She is unsociable, hyper sensitive and rebelling against her working class background.