

Today, in 2025, thirty members of the same family learn they will inherit a house that has been abandoned for years. Four of them—Seb, Abdel, Céline, and Guy—are tasked with assessing its condition. These distant cousins will discover hidden treasures within the old house. They will find themselves on the trail of a mysterious Adèle who left her native Normandy at the age of 20. This Adèle finds herself in Paris in 1895, at a time when the city is undergoing a profound industrial and cultural revolution.