Rome: In the small church of Santa Giuliana, a magnificent Caravaggio altarpiece disappears without a trace in the middle of the night. Paris: In the basement vault of the Malevich Society, the curator is shocked to discover the disappearance of the Society's great treasure, White on White by Suprematist painter Kasimir Malevich. London: At the National Gallery of Modern Art, the museum's newest acquisition is stolen just hours after it was purchased...