Leon is 7 and a half years old and 7 and a half is the age of “why”? All day long, he interrogates his parents with impromptu questions. In each scene, we see that the questioned parent improvises an answer. There is one exception, a question that is more disarming than the others, and it is the question that all children ask themselves at least once a day: what are we eating tonight? The music is that of the film the” Four hundred blows” / les 400 coups by François Truffaut.