The passion that Joan of Castile, daughter of the Catholic Kings and heir to the throne, feels for her husband, Philip the Handsome, sovereign of the Netherlands and son of Maximilian of Austria and Mary of Burgundy, is not reciprocated. Her temperament, her jealousy and an unexpected tragedy will throw Joan into the dark realm of madness and obsession with death, the only realm where she will be a true queen…

Paris 1900. Sharing a house in the Bohemian District are Roberto, a fledgling Musician, who is composing an Opera with his friend the poet Victor Duval; and the beautiful Cossette, daughter of a retired tenor, who goes up and down the stairs, taking advantage of Roberto's music to train her voice. The young bohemian musician does not know Cosette, but hears her sing daily. Instead, she's in love with Roberto and follows his steps as a composer.

Crown of Castile, 1520. The Comuneros rise up against Charles I, king of Castile and Aragon and emperor of the Hispanic Monarchy. While Juan de Padilla, leader of the uprising, and his captains, Juan Bravo and Francisco Maldonado, fight against the imperial armies, his wife, María de Pacheco, rules the city of Toledo, capital of the rebels.

A newlywed couple already wants to separate, but the apartment they live in belongs to both in equal parts, so they must go on living together until they discover--after solving many problems--in the end how much they really do love each other.

Maria del Pilar is in love with Sebastian, a servant of his house. But her father wants her to marry Marcos a rich landowner. The girl refuses Marcos and he decides to take revenge.

Rosario, Tirana, actress of the late eighteenth century, enjoys the protection of the Duke of Fornells, Chief Justice of the Kingdom, which paves for the actress the way to fame on stage at the Prince theater. The secret love of Rosario, the Earl of San Esteban dies in a duel with Fornells and its position is occupied by the bullfighter Costillares.