An unexpected inheritance brings four distant relatives together at an abandoned country house in Normandy, where they uncover their mysterious family history. In 1895, their ancestor Adèle, at the age of 21, sets off for Paris in search of her mother. She experiences a city on the cusp of modernity, the rise of photography, and the beginnings of Impressionist painting. As her descendants follow in the footsteps of this extraordinary woman, they not only unravel Adèle's unique story but also find their own path to a shared future.