Smetana's penultimate opera premiered on September 18, 1878, at the New Czech Theater. At the National Theater itself, it was staged in the 20th century, for example, from 1980 and 1983, respectively. The 2006 production in the second courtyard of the Litomyšl Castle, which was filmed by Czech Television, is characterized by a minimalist set with an imaginative neon silhouette of Bezděz Castle, as well as the fact that, with two exceptions, all the singers were performing their roles for the first time. Tenor Pavel Černoch, who at that time still had his international career ahead of him, excelled in the role of Vít... Since its creation, The Secret has been considered Smetana's most perfect and mature opera. Even the overture is a remarkably composed and superbly constructed masterpiece. After this successful premiere in Litomyšl, the performance became part of the repertoire of the National Theater.

Trapped in an abusive marriage, a wealthy German prince desperately seeks a way out. But what appears to be the road to salvation soon turns into a highway to hell. The universal language of music meets the international language of Esperanto in this debut opera by Ivan Acher. The carpenter, forest worker, designer and composer has cleverly blended electro-acoustic and contemporary music to breathe life into Ladislav Klíma’s expressionist novel, The Sufferings of Prince Sternenhoch.

The common theme of the short story film is the famous duels between two important historical figures: Pushkin and Casanova. Pushkin's tragic duel, which ended his life prematurely, is portrayed in connection with the creation of his short story "The Dirty Shot", while Casanova's story is conceived in a rather ironic and humorous way. The point is that the famous seducer never actually seduced, on the contrary, all his life he was in a constant battle with female seductions.

An interesting look at love destroyed by the demon of drugs, which uses opera singing instead of spoken word. A story about the relationship of two young people and drug addiction.