The series that inspired the Netflix show Lupin. A chance encounter irrevocably alters the course of one man's life, and the tensions between France and Germany boil over...

In "The Woman of Mystery", Leblanc paints a wonderful tale of WWI in France, twined together with the mystery surrounding the murder of main character Paul's father. In 1898, a young boy watches in horror as his father is stabbed to death by a mysterious woman wearing a black lace scarf and an ornate brooch, Years later, when he arrives with his new bride at the chateau that was part of her dowry, he sees in a portrait the face of his father's murderer, wearing the same black lace and brooch -- his wife's late mother.

Then he himself is attacked by a man resembling that same woman. Torn between love and repulsion for his bride, and plagued by self doubt, he answers the call to arms as world war begins.