Although heavily modified, the series bears close resemblance in the overall arch of an infiltrated government official, the web of double crosses concerning military industry, its highly nationalistic tone and even title, to Verräter (1936), a German propaganda film produced by the UFA under Joseph Goebbels. The movie is now considered (despite its original use) a thriller masterpiece, and became the highest grossing film in Europe, winning several awards.
When the new Labour MP gives his maiden speech, he is met with boos and cheers. In fact, the tradition is that maiden speeches are all heard in respectful silence and are not meant to be party political.