Inspired by real-life events, it tells the story of Charlotte Picot, a young woman from the country forced to venture to the fearsome city of Paris in search of her only-remaining son, Nicolas. Fate (or coincidence) places the quick-witted charlatan Adam Lesage in her path. Lesage is newly released from the prison galleys and on the hunt for treasure, but, believing him to be a spirit she has summoned from the underworld, Charlotte enlists his help in finding her child