Watcher (2019)

The lives of Do Chi Gwang, Kim Young Koon and Han Tae Joo were destroyed by a tragic affair. They became members of an internal affairs investigation team for the police and they try to dig up the truth on who is behind the tragic affair.
Crime, Drama, Thriller · Starring Han Suk-kyu, Seo Kang-joon, Kim Hyun-joo, Park Joo-hee
Season 1 episodes
- Episode 1: Young Goon Fires His Gun
- Episode 2: Searching for the Kidnapping Child
- Episode 3: Corruption Investigation Team's First Case
- Episode 4: Organ Traffickers
- Episode 5: Bribery Ledger
- Episode 6: The Favorite Side
- Episode 7: Six Bodies without Thumbs
- Episode 8: Call from Park Si Young
- Episode 9: Call from Baek Song Yi
- Episode 10: Jo Soo Yeon's Secret
- Episode 11: Young Goon in Danger
- Episode 12: Behind the Mask
- Episode 13: Appearance Of Lawyer Yoon Ji Hoon
- Episode 14: Who Murdered Young Goon's Mother
- Episode 15: Chi Gwang Is Getting Closer To The Truth
- Episode 16: Park Jin Woo Found Dead