Amélie, a young waitress in a Montmartre bar, spends her time observing people and letting her imagination run wild. She has set herself a goal: to do good for those around her. So she invents stratagems to intervene incognito in their lives. Amélie's path is strewn with encounters: Georgette, the hypochondriac tobacconist; Lucien, the grocery clerk; Madeleine Wallace, the concierge with a penchant for port wine and stuffed dogs; Raymond Dufayel, her neighbour.