Special Crime Investigation
- Title: 특수수사일지: 1호관사건 / Teuksu Susa Ilji: 1 Ho Gwan Sa Seon
- Also known as: Special Crime Investigation: Murder in the Blue House
- Genre: Mystery, Detective
- Episodes: 4
- Broadcast network: KBS2
- Broadcast period: 2006-Sep-13 to 2006-Sep-21
- Air time: Wednesday & Thursday 21:55
Murder in the Blue House. Jung Suk Kyu, a chef in the Blue House was found dead in his room in an apparent suicide. Police detectives Kim Han Soo and Park Hee Young are tasked to investigate the incident, which took place in a sensitive period, just before the upcoming peace talks between North Korea, South Korea and the United States.
But as they investigate, it becomes increasing clear that things are not what they seem and they find themselves in a race to find the killer before the killer strikes again.
- Yoon Tae Young as Kim Han Soo
- So Yi Hyun as Park Hee Young
- Park Kwang Jung as Moon In Soo
- Kim Doo Yong (김두용) as NISI officer
- Lee Sang Hong as Postmortem examiner
- Lee Jong Goo as Yeongdeungpo Chief
- Park Pal Young (박팔영) as Jongno Chief
- Oh Yong as Kim Ho Il
- Kim Ji Young as Reporter Choi
- Min Sung Wook (민성욱) as Reporter 1
- Seo Dong Kap (서동갑) as Reporter 2
- Lee Sung Min as Ha Doo Gil
- Park Geun Hyung as President Jang Hyun Suk
- Lee Hye Sook as First Lady Lee Jin Ah
- Ahn Suk Hwan as Choi Joon (Presidential secretary)
- Kwon Byung Gil as Joo Hyun Wook (Doctor)
- Park Jin Young (박진영) as Dr. Kang (Presidential aide)
- Kim Kwang In (김광인) as Oh Jung Hoon
- Ep1: 밀실 (密室) "Secret Room"
- Ep2: 미궁 (迷宮) "Maze"
- Ep3: 추적 (追跡) "Trace"
- Ep4: 상흔 (傷痕) "Scars"