Sophie is a little girl, naiver than nasty; sometimes abetted by her cousin Paul, she always gets into mischief, although the boy is much wiser than she is. Her best friends , Camille and Madeleine are so virtuous that Sophie's behavior doesn't compare favorably with theirs. In the castle where she lives with a rather severe mother (and a father very often gone to Paris), not a day goes by without she getting up to mischief.

1860. Les aventures de Sophie, une fillette de six ans qui vit avec sa mère, Mme de Réan, dans un vaste château. Sophie, qui reçoit la visite de son cousin Paul pour les vacances, n'en fait qu'à sa tête et multiplie les bêtises, ce qui lui vaut les remontrances de sa mère.