is a 2022 South Korean action-suspense thriller following a judicial trainee who enters prison undercover for an investigation and finds himself embroiled in a high-stakes survival game. Core Story & Plot
(Heo Sung-tae): A powerful and corrupt chief prosecutor.
(Kim Sang-ho): A senior prosecutor who initially sends Yo-han undercover but whose motives become murky. Series Information is a 2022 South Korean action-suspense thriller following
: At the suggestion of senior prosecutors, Yo-han goes undercover into Seongju Prison to gather evidence against a corrupt gambling ring and a high-ranking prosecutor.
The series revolves around , a meticulous judicial trainee who lives with his grandmother. Series Information : At the suggestion of senior
The show consists of and was originally broadcast on JTBC in 2022. It is available for streaming on platforms like Viki and Netflix . Watch Insider | Netflix
(Kang Ha-neul): A judicial apprentice who transforms from a naive student into a hardened "insider". It is available for streaming on platforms like
(Lee Yoo-young): An ambitious businesswoman who assists Yo-han for her own vengeance.