Two arts students, András and Viktor who are writing their thesis on detective stories, make up a story and keep nagging the famous film-director, who just came back from Hollywood, until he undertakes the job. At night they work on the film, in which two youths kill a director returning from the US. In the morning the director is found dead - a knife in his back.
This mocking criticism of public life and the media focuses on a TV series. The protagonist of the film, depicting the battles fought for Hungarian castles during the Ottoman occupation, is chosen to be the amateur Prohászka Feri, a worker in the beer-factory.
Lohmann's son is kidnapped. The un-known kidnappers get a thirty-thousand-jewel from the West German millionaire as ransom. The eager police lieutenant-colonel, Gálffy finds that the traces lead to a mysterious, elegant blonde, who is naturally a brunette.