Color symbolism (red/gold), the use of masks, and the choreography of the "testing" scenes.
The film was controversial upon release. Critics praised the performances (specifically Kim Kang-woo as the unhinged King Yeonsan, who chews the scenery like a man who hasn't eaten in years) and the artistic direction. However, they criticized the pacing and the graphic nature of the content, accusing it of being "historical pornography" rather than historical drama. -CM- The Treacherous 2015 1080p BluRay DD5.1 x2...
The Treacherous is a heavily stylized film. Watching a compressed 720p or 480p version ruins the directorial intent. Here is why the specific specifications of the -CM- release are vital. Color symbolism (red/gold), the use of masks, and
2015 : This is the year the movie was released. Color symbolism (red/gold)