Three strangers arrive at Ribeiro de Baixo, a village on the Minho border, where mysterious night lights foretell the death of its inhabitants. In the silence of the valley, Áurea and Umbelina spend their days watching over the cattle across the border, sharing stories of encounters with wolves and ancestral customs. From France, the grandchildren arrive and casually join the village in witnessing the twilight of a generation and a way of life.