Pam is twenty. She and her girlfriends hang out together on the couch at The Ranch, the apartment she shares with Manon. Sitting around chatting, drinking, smoking, and dancing are part of life at their age, but there comes a time when you need to cut loose from the group and go your own way...

Vincent Machot knows his life by heart. He shares it between his hair dressing salon, his cousin, his cat, and his too-invasive mother. But life sometimes holds surprises, even for the most prudent of people... He crosses paths with Rosalie Blum by accident. She is a mysterious and solitary woman whom he is sure he has already met. But where? Intrigued, he decides to follow her everywhere, in the hope of knowing more about her.