On a Saturday morning in a working class suburb in Los Angeles, 1928: Christine said goodbye to her son, Walter, and left for work. When she came home, she discovered he had vanished. Months later, folowing a fruitless search a boy claiming to be the nine year old is returned. Dazed by the swirl of cops, reporters and her conflicted emotions, Christine allows him to stay overnight. But in her heart, she knows he is not Walter. She pushes the authorities to keep looking and learns that in Prohibition...