A Letter to Madame is an intriguing mystery set in 1790 in France in the second year of the Revolution. The fascinating and mysterious Comte de Navasse, who owns a plantation on the French colony of Saint Domingue, takes Paris by storm. When he meets the beautiful Sophie, Comtesse de Boise, he is astonished to notice that she looks almost identical to a portrait that he owns of a woman called Ad le de Montbasson. Sophie's investigation into the history...