Bronia Jablon is separated from her family, and even her husband has escaped into the woods without her. It is 1942, the height of Nazi persecution in Poland, and Bronia and her three-year-old daughter, Lucy, wonder how they will survive each day. Should they hide in their hometown or should they search for their family in the nearby ghetto? Starving and exhausted, Bronia does not know who they can trust when all of their old friends and neighbours are either collaborating with the Nazis or too terrified for their own lives to offer assistance. When they finally find help, a cold, dark cellar becomes both their haven and prison.