The head of a failing French family thinks that fate has smiled down on him when the daughter of a wealthy man agrees to be married to his son. The daughter and her aunt then travel out to the French countryside to meet with the family, unaware that a mysterious 'beast' is stalking the vicinity.
Blanche is the young, pure, beautiful wife of the Master of the castle, in a secluded land. Every man is in love with her, including the King and his servant Bartolomeo, visiting the Master.
Based on a short story by Guy de Maupassant, Borowczyk relates the plight of a servant girl who killed and buried her child in the garden.