Leon Rollo whose nickname is "Patate" is an inventor adored by his wife and is daughter. He is mostly happy but his best friend Noël seems to succeed in everything he undertakes... Patate become increasingly jealous of this incredible luck.

This simple romantic tragedy begins in 1957. Guy Foucher, a 20-year-old French auto mechanic, has fallen in love with 17-year-old Geneviève Emery, an employee in her widowed mother's chic but financially embattled umbrella shop. On the evening before Guy is to leave for a two-year tour of combat in Algeria, he and Geneviève make love. She becomes pregnant and must choose between waiting for Guy's return or accepting an offer of marriage from a wealthy diamond merchant.

Charles le Temeraire asks in marriage Jeanne de Beauvais, daughter of King Louis XI, wishing to get her valuable lands in dowry. The King is wise to this, and since his daughter does not feel inclined to accept, he refuses. Charles sets up a plan to abduct the prince, in a way that the suspicions will fall upon Robert de Neuville, a noble enamoured of the princess. Robert manages to free her from the castle where she was being kept. Charles keeps setting traps, and managing people to perjure against Jeanne, and the King himself. Finally, Jeanne escapes alive from a pack of wolves, who set watching the lady alone in the snow covered woods, instead of attacking her. Charles does yet accuse her of being a witch - wishing to have her dead rather than being the wife of Robert... Robert will be her champion in a Judgement of God. Will the 'miracle of the wolfs' repeat itself, or fearless Charles defeat Robert in the sword duel?