1 September 1939. As the mass evacuation takes place across Britain, thousands of children leave London for the safety of the countryside. But when a little girl vanishes, it's clear that danger can lurk in the quietest village. Josephine Tey arrives to help DCI Penrose investigate, but when a cloud of mistrust falls across the small community she has come to love, events take a sinister turn. An atmospheric snapshot of England in the early days of war.