In a stark, black-and-white future Paris of the year 2054, where every movement is monitored and recorded, the mega-corporation Avalon sells the promise of youth and beauty. When one of their most promising scientists, Ilona Tasuiev, goes missing, the corporation hires hard-boiled police officer Karas to find her. Haunted by his own demons, Karas is a man who prioritizes results over methods, skilled in navigating the shadowy layers of Paris. His relentless pursuit of the truth leads him through the labyrinthine underworlds of the city, unraveling a complex web of intrigue and conspiracy.

As Karas digs deeper, he encounters a network of characters, including a mysterious figure with hidden motivations, and Ilona's sister, Bislane, who assists in the investigation despite her own complicated past with Avalon. Karas begins to piece together Ilona's significance to a groundbreaking secret project Avalon is hiding, as he uncovers the unsettling reality behind the culture of corporate omnipotence and eternal youth. The more Karas learns about Ilona's work and her disappearance, the more apparent it becomes that powerful forces will stop at nothing to protect their interests, setting the stage for a confrontation where the line between human values and corporate gain is dangerously blurred.