In the 15th century, a Flemish master introduces a game of chess into a painting, and thereby offers the key to resolving a crime of that era. Five centuries la... » 

In the 15th century, a Flemish master introduces a game of chess into a painting, and thereby offers the key to resolving a crime of that era. Five centuries later in Madrid, a woman art-restorer joins forces with an antiquarian and a chess-player in an effort to crack the enigma. «