In Africa, during the colonial war, a patrol is lost in the bush and a soldier dies in operation. Twelve years later, in Portugal, the soldier family meets in peace.

Ana Catarina returns from Brazil with her father and her nanny to marry a man she doesn't know and doesn't like. A terrible coincidence happens when, on the same day, the young woman becomes a widow and an orphan, a fact that leaves her heir to an incalculable fortune and coveted by all the aristocrats in the region.

Lisbon by night, through the eyes of a young woman who lives freely, and a neighbour who follows her everywhere, from a distance.