En 1821 au Brésil, un marchand d'esclaves veuf épouse la nièce de son épouse défunte. Mais ses affaires l'obligent à être très souvent en voyage, laissant sa nouvelle femme seule au milieu des esclaves.
Sylvia and Lúcio have decided to separate after twelve years of living together. The last night under the same roof is marked by memories, accusations and revelations that will change their lives.
Fragments of an endless night, Robert and Teresa meet and get to know each other, and get separate by the force of oppression and the threat of death and disappearance that continually creeps in.