The Fatal Encounter

The Fatal Encounter Hangul RRYeokrin lit. The Kings Wrath is a 2014 South Korean film based on a reallife assassination attempt on King Jeongjo. Jeongjo is portrayed by Hyun Bin, in his first role in a period drama and first acting project after being discharged from mandatory military service.

In 1777, one year after he began his reign, King Jeongjo lives a perilous palace life amidst opposition and threats from those around him who harbor political ambitions. He prepares himself for possible attacks by working out alone in the palace. Jeongjo is a calm and considerate man, but he is also afraid. The only one he trusts is his loyal court servant Gapsoo, called the kings shadow.When Gapsoo was young, he was sold to a cruel man named Gwangbaek, who illegally and brutally trains orphaned children to become professional assassins. Gapsoo befriends Eulsoo, another orphan who is a few years younger than him. When Gwangbaek is instructed to give one of his children to become a court eunuch, he asks Gapsoo and Eulsoo to play the game of rockpaperscissors Gapsoo purposely loses the game in an effort to protect Eulsoo. Thus, Gapsoo is castrated and sent to the royal palace. There he meets Jeongjo, a young boy who is still mourning his fathers death. Meanwhile, Eulsoo continues enduring harsh training and grows up as a merciless killer. ........

Source: Wikipedia