Secret Door (Hangul: 비밀의 문; RR: Bimir-ui mun) is a 2014 South Korean television series starring Han Suk-kyu, Lee Je-hoon, Kim Yoo-jung and Park Eun-bin,Kim. It is aired on SBS. The period drama explores the conflicted and ultimately tragic relationship between King Yeongjo and his son, Yi Sun (Crown Prince Sado). Shrewd Yeongjo wants to strengthen royal power, but passionate and idealistic Sun dreams of equality and a status-free society. 혜경궁 홍씨 박은빈 Hanbok Traditional, Traditional Asian Dress, Traditional Looks, Traditional Outfits, Korean Hanbok, Korean Dress, Lee Je Hoon, Kim Yoo Jung, Secret Door