Crown Prince Sado
For his comeback project, Lee chose "Secret Door", a period drama about Crown Prince Sado who was controversially executed through death by starvation by his father King Yeongjo; the series reunited him with Han Suk-kyu. This was followed by the Jo Sung-hee-directed film "Phantom Detective", a modern retelling of the eponymous folk hero Hong Gil-dong as a private detective in the 1990s.