Brought together by the unexpected inheritance of an abandoned house in rural Normandy, four cousins discover they share a mysterious family history. In 1895, their ancestor Adèle, then aged 21, leaves her hometown to search for her mother in Paris. She discovers a city on the cusp of modernity, bustling with new-found avant-garde creativity, with the rise of photography and the birth of Impressionist painting. The two timelines of 1895 and 2024 intertwine and collide.