Catholic boarding school, 1970. Father De Monval is supervising a film projection when a young schoolboy sees something that will turn his life upside down…

Marie Madeleine Dreux, Marquise of Brinvilliers, was executed in 1676 for poisoning. Manipulated by her lover and having kept the aftereffects of her childhood, she does not hesitate to poison her father and two brothers to recover their inheritance.

Aviator Marie Vallières de Beaumont goes on a journey to find her lover Bill Lancaster after his plane disappears in the Sahara. After her plane is forced down in the Ténéré she meets Lieutenant Antoine Chauvet of the French Camel Corps who joins in the hunt for Lancaster. As the two endure hardships in the desert, they begin to develop feelings for each other.

2010 film by Pierre Morel