When a restorer discovers a hidden inscription beneath a five-hundred-year-old Flemish painting, she triggers a deadly game of chess that mirrors the secrets of the past. Julia, an art restorer in Madrid, finds a cryptic message painted over by a master artist centuries ago, which suggests a long-forgotten murder. As she attempts to solve the riddle, she enlists the help of an antique dealer and a chess grandmaster to decode the moves of a game that seems to dictate the actions of those around her. The narrative unfolds through a blend of art analysis and strategic gameplay, forcing the protagonists to confront a modern-day killer who treats their lives like pieces on a board. The story maintains a tense, intellectual atmosphere where every move carries lethal consequences.

This novel is widely regarded for its intricate plotting and the seamless integration of art history with the mechanics of a thriller. Readers often note the intellectual stimulation provided by the chess-based narrative structure, which elevates the story beyond standard genre conventions. The pacing is frequently described as deliberate and methodical, reflecting the careful nature of the protagonist's work. It stands as a notable example of the bibliomystery and art-thriller subgenres, appealing to those who enjoy puzzles that require close attention to detail. The work is recognized for its ability to sustain tension through cerebral challenges rather than purely physical action.