Suffering from empty nest syndrome, two lonely parents concoct a scheme to get their kids interested in them again: they pretend they've won the lottery.
In the peaceful world of Little Nicholas, there is Daddy, Mommy, the school, but above all, his band of friends. They are called The Invincibles, but above all they are inseparable. At least they think so. But when Dad gets a promotion and announces that the family is moving to the south of France, Nicolas' world falls apart. How can he imagine life without his best friends?
Nelie escaped a miserable existence by becoming a frontline nurse in 1914. One day, she takes the identity of Rose, a young woman from a good family, who dies in front of her. She presents herself in her place at Madame de Lengwil's house, to become the reader of this wealthy woman.