The French female pioneer of immersion journalism, Maryse Choisy, who infiltrated in 1928 the prostitution underworld of Paris. Posing as a chambermaid, a lesbian bar dancer and more, she wrote a very successful and scandalous book about that avant-garde experience, and changed her mind about this world and these women's difficult condition.

After a soldier back from Afghanistan leaves a message on her machine right before jumping off a building, Helene Villon, a respected journalist working for a big national paper, feels that this suicide is hiding another story.