

8.6100 minSeason 1 • Episode 20
LatestBa Reum makes the final decision to turn himself in and finish one last mission that only he can do. Hong Ju also shares her big secret that’s been tormenting her for years on her last show with Hee Jin, a woman who in fact was a secret agent working for Choi Young Shin under a massive private organization.
A psychopath's ruthless serial murders have left the entire nation gripped by fear and chaos. An honest, justice-seeking rookie police officer and a veteran detective with a tragic past, face off against the killer. After their encounter with the psychopath, their lives change completely.
Acting
Lee Seung-gi's face-acting during the church scene deserves awards.
Writing
Episode 8 twist rewrites everything you assumed. Cheeky bastards.
Direction
Head-hunter reveal sequence: pure cinematic sadism.
Trivia, insights & behind the scenes
Lee Seung-gi initially rejected the role three times, terrified of destroying his wholesome image. The directors stalked him with revised scripts until he caved.