In 2007, Historian John Maloof bought a box of photographs in an auction held in Chicago. The photographer was Vivian Maier, a babysitter who secretly took over 100.000 photos during her life time. With efforts of Maloof, her name came to be known in a short time, and she became one of the best photographers of the 20th century. Brought to light from unknown pages of history by John Maloof, this documentary chases this interesting woman. It aims to understand her and her life through interviews made with her acquaintances and relatives in France.