A young woman, Cassie (Christina Ricci
), is hit by a car. The car’s driver, Marion Kirkman (Kerry Fox
), takes Cassie to her home to recover from the trauma and when she awakes, she has no memory of who she is or why she’s in England.
Meanwhile Marion’s husband Simon (Stephen Dillane) is off on an archeological dig. Cassie begins to have visions, while Simon learns more and more about the ancient church he’s uncovering.