Catherine de Médicis, the power behind the Catholic throne of her son Charles IX, arranges an apparently peace-making marriage between her unwilling daughter Margot and the Protestant Henri de Navarre. The wedding soon turns into a massacre of the visiting Protestants and Henri’s life is only saved by Margot’s intercession. As intrigue, murder and adulterous relationships multiply in the Court a strange but strong loyalty emerges between the apparently ill-matched couple.