In 2007, young Chicago historian John Maloof attended a storage unit auction and bid $400 on a box of photographs and negatives. Never publicly displayed, they were the work of a mysterious nanny named Vivian Maier, who secretly took over 100,000 photographs during her lifetime. Maier is now regarded as one of history's greatest street photographers. In Maloof's riveting documentary, he uncovers the strange, fascinating backstory by interviewing those who knew Maier.
"More connect-the-dots detective thriller than traditional doc, John Maloof and Charlie Siskel's revelatory riddle of a film unmasks a brilliant photographer." (Chris Nashawaty, Entertainment Weekly)