After being inexplicably removed from her family in a small fishing town in Argentina, six year-old Angelina is sent to a Catholic convent, where she spends her next twelve years. During her lonely days at the convent, she finds solace in the company of a mysterious presence, by the name of Sara Fernandez, which gradually reels her into the life of a Marrano family living at the end of the 15th century in Cordoba, Spain. As Angelina embeds herself in the life of the Fernandez family, she understands that Sara is not a product of her imagination, rather the link to her secret past and her only hope for survival. Set amid the notorious Spanish Inquisition and the murderous Dirty War in Argentina of the late 1970s, two women, more than four centuries apart, transcend the barriers of time and fight political and religious persecution to ensure the survival of their lineage.