In a dark and enigmatic atmosphere of 1920s Paris, a private detective named Lucien finds himself trapped in a labyrinth of mysteries and betrayals. It all begins when a beautiful, wealthy, and powerful woman hires him to find her missing husband, a businessman with closely guarded secrets. As Lucien delves deeper into the investigation, he discovers that the husband is not who he appears to be, and that his disappearance is connected to an organized crime network operating in the shadows of the city.
With its unmistakable noir style, the plot weaves together a series of unexpected twists: from furtive meetings in bohemian cafés to dangerous chases through dark alleys. Lucien's search leads him to encounter intriguing characters: a charismatic thief who seems to hold the key to the puzzle, a femme fatale with a murky past, and a group of mobsters who will stop at nothing to protect their secrets.
As each clue brings him closer to the truth, it also pushes him toward a deadly confrontation in which he must decide how far he is willing to go to solve the case. In a world where loyalty is uncertain and justice does not always prevail, Lucien discovers that sometimes the price of truth can be higher than he imagines.