Here is the plot summary of "Le château perdu" (The Lost Castle): In the picturesque French countryside, a reclusive and enigmatic aristocrat, Madame de Saint-Marc, has spent decades building an imposing castle as a testament to her family's legacy. As the years pass, the once-grand estate falls into disrepair, mirroring the decline of its occupants. The story centers around Jean-Pierre, a talented but disillusioned architect who is commissioned by the mysterious Madame de Saint-Marc to restore her beloved castle to its former glory. Upon arriving at the estate, Jean-Pierre becomes infatuated with the labyrinthine corridors and hidden chambers that seem to whisper secrets of the past. As he delves deeper into the castle's history, Jean-Pierre uncovers a complex web of family dynamics, long-buried scandals, and tragic love affairs that have shaped the lives of its inhabitants. He forms an unlikely bond with Madame de Saint-Marc herself, who reveals the true story behind her family's downfall. As the restoration progresses, Jean-Pierre finds himself entangled in a romantic triangle between his growing affection for the reclusive Madame de Saint-Marc and his own sense of identity. As the lines between reality and fantasy blur, he begins to question whether the castle is truly the lost treasure or a reflection of his own fragmented psyche. With its richly textured characters, intricate plot twists, and stunning cinematography, "Le château perdu" is a poignant exploration of the human condition, love, and the enduring power of architecture to shape our understanding of ourselves and the world around us.