The Treacherous 2015 Imdb -

Actress Lim Ji-yeon (later of The Glory fame) plays a concubine and features in several explicit scenes. The IMDb parental guide section is a battleground, with users arguing whether the nudity is essential to the plot or purely exploitative.

The Trivia page for The Treacherous on IMDb is a treasure trove for history buffs. It notes that while King Yeonsan did commit purges during the First and Second Literati Purges (1498 and 1504), the film exaggerates his depravity for dramatic effect. the treacherous 2015 imdb

One fascinating IMDb trivia entry states: "The royal banquet where dancers are forced to perform while wearing 'slave' tattoos is entirely fictional, but based on written accounts of Yeonsan's humiliation of Confucian scholars." This mix of fact and vicious fiction is why historians hate the film, but horror fans love it. Actress Lim Ji-yeon (later of The Glory fame)

Further viewing: Pair with other Korean historical/political dramas (e.g., The King and the Clown, The Handmaiden for tone contrasts) to compare approaches to power and exploitation.