Jean is ten years old and imagines that he is the cause of the misunderstanding that occurred between his parents. He leaves the military institute where he studies and becomes the protégé of an opera singer at whose house, one day, he surprises a thief who blesses him. His parents reconcile at the foot of his hospital bed.
as Commandant Robert Vernot
as Claude Arbellin
as Denise Vernot
as Le petit Jean
as Belette, le moniteur de l'école (as Aimos)
as Le colonel
as Le petit Pierre
as Raymond
as Denys