The Paris Wife is a fictionalized, though well researched version of Hemingway's marriage to Hadley, most of which they spent living in Paris in the company of many other expatriate writers including F. Scott Fitzgerald.
The story moves from their sudden marriage after a short courtship to Sherwood Anderson's encouragement to visit Paris where Hemingway would have the influence of renowned writers like Ezra Pound and Gertrude Stein.
Hadley doesn't really fit in with Paris, with her stodgy ways, but tries to fulfill her role of wife , friend and muse. After she infamously loses Hemingway's valise of manuscripts (why did he not have that valise with him?!), their marriage unravels (of course) and another women, in the person of Pauline Pfeiffer enters Hemingway's life, an event that leads to Hadley exiting his life (but whatever became of the papers in the valise?).