The young inventor Ondřej Linecký lives in lodgings with Mrs Bártová, the caretaker. He is in love with Mrs Bártová's daughter, Jana. He invents a televisual device but needs to find somebody to provide the necessary financial backing for development of the machine. Jana recommends him to her employer Mr Stefan. Stefan, after testing the device and seeing images from all over the world, summons his technician whom he wants to find out the secret of the invention, thus deceiving Linecký. Jana asks Stefan to sign an agreement with Linecký; Stefan says he will if Jana becomes his lover. Jana refuses and Stefan threatens her, but their meeting is captured on Linecký's television. Linecký rushes to Jana's aid, and Stefan, thus compromised, signs an agreement that is advantageous to Linecký. Now Linecký can marry Jana. (According to promotional material issued at the time the film was made.)
The film was produced by the U.S. company Paramount, which initiated filming of the identical theme in various European countries. These version were: Magie moderne (Télévision) – French version; Televisie (De sensatie der toekomst) – Dutch version; Świat bez granic – Polish version; Telviziune – Romanian version; Tradlöst och kärleksfullt – Swedish version; Televisione – Italian version. The title of the German version is not known. According to the film yearbook issued at the time the film was made, the length of film was 1705,0 m.