Secret Door

Plot

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.

Cast

Lee Je-hoon

Crown Prince Sado

Kim You-jung

Seo Ji-dam

Yoon So-hee

Seo Ji-dam / Park Bingae

Han Suk-kyu

King Yeongjo

Park Eun-bin

Lady Hyegyeong

Kim Min-jong

Na Chul-joo

Lee Won-jong

Park Mun-su

Kwon Hae-hyo

Seo Kyoon

Jeon Kuk-hwan

Lee Jong-sung

Jang Hyun-sung

Hong Gye-hui

Uhm Hyo-seop

Min Baek-sang

Kim Ha-kyoon

Kim Sang-ro

Choi Won-young

Chae Je-gong

Seo Jun-young

Shin Heung-bok

Ha Seung-lee

Queen Jeongsun