It's 1832, 22-year-old Raphaël's gambling has driven him to the brink of suicide. As he is about to throw himself in the Seine, a shopkeeper offers him something: a mysterious "skin of sorrow", which will grant all his wishes, but in doing so will shrink his remaining time on earth.

Set in 1973 during the coup d'etat in Chile, Max recalls his encounters in London during World War II with French aviator Antoine, a childhood hero he first met in his native country one morning in 1932 and who initiated him to the wonders of aviation.