: 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.
: He discovers that the prison is actually an extensive underground gambling den. To survive and seek revenge for his grandmother's death, Yo-han must use his "poker face" and intellect to rise through the ranks of the prison's gambling world. : At the suggestion of senior prosecutors, Yo-han
: He forms a tense partnership with Oh Soo-yeon , a successful businesswoman with a dark past seeking her own retribution, and Jang Sun-oh , a gambling genius who controls the prison's underground games. Cast & Characters : He forms a tense partnership with Oh
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 Watch Insider | Netflix (Lee Yoo-young): An ambitious
(Lee Yoo-young): An ambitious businesswoman who assists Yo-han for her own vengeance.
The series revolves around , a meticulous judicial trainee who lives with his grandmother.