A small piece of clothing changes the world - a gripping historical novel about the invention of the bra Dresden 1908: A new era begins, the years of great inventions have begun. Christine works as a therapist at the world-famous Lahmann Sanatorium. During their treatments, the fine ladies in their tight corsets faint in rows - which gives Christine a world-changing idea: she develops the first bra. The first models made of sewn-together cloth handkerchiefs and suspenders initially found little favour in high society, and the ladies rejected the new garment. Fortunately, there are Julia, Lotta and Amalie who support Christine in the further development of the bra. The four friends live in a shared house and fire each other up trying out and tinkering with new ideas. And they give Christine support - especially when the charming Franz arrives at the sanatorium, but he is accompanied by Johanna ...