When Alizée Benoit, a young American painter working for the Works Progress Administration (WPA), vanishes in New York City in 1940, no one knows what happened to her. Not her Jewish family living in German-occupied France. Not her arts patron and political compatriot, Eleanor Roosevelt. Not her close-knit group of friends and fellow WPA painters, including Mark Rothko, Jackson Pollock, and Lee Krasner. And, some seventy years later, not her great-niece, Danielle Abrams, who, while working at Christie's auction house, uncovers enigmatic paintings hidden behind works by those now famous Abstract Expressionist artists. Do they hold answers to the questions surrounding her missing aunt?