Martin, an ex-Parisian well-heeled hipster passionate about Gustave Flaubert who settled into a Norman village as a baker, sees an English couple moving into a small farm nearby. Not only are the names of the new arrivals Gemma and Charles Bovery, but their behavior also seems to be inspired by Flaubert's heroes.

Poland, winter of 1945. Mathilde Beaulieu (Lou de Lâage) is a young intern working with a branch of the French Red Cross. They are on a mission to find, treat and repatriate French survivors of the German camps. One day, a Polish nun arrives in the hospital. In very poor French, she begs Mathilde to come to her convent. Mathilde life and beliefs change when she discovers the advanced state of pregnancy that affect several of the Sisters of the convent just outside the hospital where she performs.

Lil (Naomi Watts) and Roz (Robin Wright) are two lifelong friends, having grown up together as neighbors in an idyllic beach town. As adults, their sons have developed a friendship as strong as that which binds their mothers. One summer, all four are confronted by simmering emotions that have been mounting between them, and each find unexpected happiness in relationships that cross the bounds of convention.