A grey dawn in 1943: on a street in Rome, two young women, complete strangers to each other, lock eyes for a single moment. One of the women, Chiara Ravello, is about to flee the occupied city for the safety of her grandparents' house in the hills. The other has been herded on to a truck with her husband and their young children, and will shortly be driven off into the darkness. In that endless-seeming moment, before she has time to think about what...