Lee Kwang-soo has confirmed that he will be starring in the untitled sequel to Detective: The Beginning. The first starring actors Kwon Sang-woo and Sung Dong-il will return, and the film will be directed by Lee Yeon-hee (Lost: The Lost Woman). The film will continue the story of the detective genius Kang Dae-man (Kwon Sang-woo) and the detective Roh Tae-soo (Sung Dong-il). Lee Kwang-soo will play a role that did not appear in the first film, and the specific information has not yet been announced. The film will officially start shooting in June.