Secret Door

A re-imagining of the legendary tale of the troubled father-son relationship between King Yeongjo and his only son Prince Sado. While his father insists on a strong and centralized government, Crown Prince Sado promotes social justice and equality throughout the kingdom. Throughout eight fateful years, the strain on their relationship — both familial and political — eventually evolves into a total breakdown, ending with one of the most tragic stories in Joseon history.

DramaHistoryMystery

Seasons

1. Episode 1

Air Date: 2014-09-22

A document, thought long destroyed, tying King Yeongjo's ascension the throne to the Noron Faction, resurfaces. Crown Prince Sado distrupts the government by proclaiming the creation and distribution of books by commoners legal.

2. Episode 2

Air Date: 2014-09-23

Heung Bok's body is found and the conspiracy to cover-up his murder begins.

3. Episode 3

Air Date: 2014-09-29

Unsatisfied with the result of the investigation into Heung Bok's death, Crown Prince Sado re-opens the case, personally heading it himself.

4. Episode 4

Air Date: 2014-09-30

Prince Sado succumbs to all evidence painting Heung Bok as a traitor, that is until Ji Dam approaches him with proof to the contrary.

5. Episode 5

Air Date: 2014-10-06

With Ji Dam's help, Prince Sado delves deeper into the conspiracy behind Heung Bok's death.

6. Episode 6

Air Date: 2014-10-07

Ji Dam hides out in a brothel while Prince Sado discovers the meaning behind Jung Woon's dying message.

7. Episode 7

Air Date: 2014-10-13

Prince Sado seeks out the identity of the man Heung Bok's final royal painting.

8. Episode 8

Air Date: 2014-10-14

An investigation into yet another death leads Prince Sado to suspect one of the people he trusts most.

9. Episode 9

Air Date: 2014-10-20

Prince Sado is accused of murder.

10. Episode 10

Air Date: 2014-10-21

Teacher Park Moon Soo makes a deal to try and save Prince Sado from prison.

11. Episode 11

Air Date: 2014-10-27

Prince Sado becomes suspicious of his father's role in the document.

12. Episode 12

Air Date: 2014-10-28

King Yeongjo appoints a new Prime Minister and sets out to enact new tax reforms while Prince Sado struggles with what to do about his father.

13. Episode 13

Air Date: 2014-11-03

King Yeongjo unleashes his punishment on the booklenders.

14. Episode 14

Air Date: 2014-11-04

King Yeongjo strips Prince Sado of all governing power. Three years later, Prince Sado begins a secret plan beginning with taking Kim Taek as his new teacher.