In "Secret Door," Lee Je Hoon found the original copy of the secret document.
On the 13th episode of SBS Monday/Tuesday drama "Secret Door" (script Yoon Sun Joo, director Kim Hyung Shik) broadcast on November 3rd, Lee Sun (played by Lee Je Hoon) finally got a hold of the original copy of the secret document.
On this day, Yeong Jo (played by Han Suk Kyu) hid the existence of the secret document and hid the truth. Yeong Jo called in all the citizens as well as Suh Kyun (played by Kwon Hae Hyo) who had created a book about the secret document. In particular, Yeong Jo tortured Shin Chi Woon (played by Baek Seung Hyun), Park Moon Soo (played by Lee Won Jong) and Park Mon Soo (played by Lee Won Jong) in addition to other soron faction members.
Lee Sun who could not just watch this happen left the palace secretly to look for the secret document. In the end, Lee Sun had the actual document in his hands.
Afterwards, Lee Sun said to Yeong Jo, "Stop this massacre. If you don't stop, then the secret document will be all over the walls of citizens" he warned.
Meanwhile, SBS Monday/Tuesday drama "Secret Door" is a period drama that follows the conflict between King Yeongjo (played by Han Suk Kyu) and Crown Prince Sado (played by Lee Je Hoon). Kim Yeong Jo has an authoritarian ruling style whereas Crown Prince Sado insists on equality for all.