A czech film that focuses on an unfaithful husband who married in to money, as well as an impoverished man who is turns to theft.

The Portorican prime minister asks British detective Sherlock Holmes to find a twin for King Fernando XXIII, a weak and frightened man who fears anarchists and does not want to show himself in public. Holmes finds in the Czech newspapers a photo of the perfect double, František Lelíček, a daring bon vivant drowned in debt, so when Holmes offers him money, Lelíček decides to travel to Portorico and play the role.

Finnicky efficiency expert is sent to straighten out business management problems at a jazz club, and finds self being drawn into the swingin' scene.

The owner of the ready-to-wear store, Mr. Richard Naceradec from Zizkov, is an enthusiastic fan of S.K. Slavia and despite his wife's opposition, he goes to football every Sunday. Tailor Emanuel Habásko lives alone with his adult son Eman. Widow Ouholicková chases Krejcí endlessly, but father Habásko bravely resists. Habásko do not recognize any other club except S.K. Viktoria. One day, Naceradec will face Eman at the match between Slavia and Viktoria.

Postman Brabec is a welcome guest of the revue theatre for his sense of humor, and he brings his director Holt letters from female admirers every day. Holt's fans include Brabec's sister Anny. The girl would like to join the theatre, but for the time being works as a maid for the actress Velden. A new revue is being rehearsed, the name of the author is secret. Veldenová will return the role just before the premiere because she doesn't like it. The quick-witted Brabec introduces the director to his sister, who knows all the parts by heart.

The case of Colonel Redl -- an officer blackmailed into spying by virtue of his homosexuality.