Synopsis

Little François, a persistent and rather bothersome child, has taken a great liking to Lupin, even to the point of publishing a preemptive message in the newspaper in his favor. She desires Lupin to replace the genuine Oppenheim Rose – a ruby her father, a jewelry appraiser, had swapped for a counterfeit. But he faces the formidable security of the Louvre. The girl is resolute in her efforts, yet Lupin accompanies her to school. What will unfold tomorrow?