Christine and Elizabeth Shepherd are on a buying trip in India for their California silk business when Elizabeth mysteriously disappears. In search of her sister, Christine ventures alone into Afghanistan and Pakistan disguised in the traditional garb of Islam, and often living among the women of the region, enduring the crushing oppression of Sharia. Christine painfully gains a new understanding of her own country and family as she navigates the mysterious tribes of the Pashtuns, has a dangerous encounter with the Taliban, and learns to fear the "Jinn," the devils that dominate the superstitions of the people she must understand in order to survive.