Set in a shabby municipal nursery in a poor Paris neighborhood, the novel follows the daily life of a devoted young teacher who tends to neglected, sometimes brutalized children and struggles to protect and civilize them; through intimate, unsentimental portraits of pupils, staff and the families they come from, it exposes the grinding effects of poverty and social indifference while showing how patient care, moral education and small acts of tenderness can offer dignity, fleeting hope and moral transformation even amid harsh urban realities.