Monsieur

A wary private investigator in 19th-century France receives a peculiar assignment from a reclusive nobleman: uncover the truth behind a string of mysterious incidents plaguing a grand estate. As he delves deeper, he encounters a quiet, enigmatic woman who seems to bridge the worlds of the living and the dead, and a wry, caring housekeeper whose warmth belies her own secrets. With time slipping away, the investigator must navigate rumors, loyalties, and longing, while wrestling with his own haunted past. The case reveals that the heart can be the most compelling riddle of all.