Insider

Kim Yo Han (Kang Ha Neul), a judiciary trainee, finds himself betrayed and imprisoned in the brutal Seongju Prison after investigating suspected corruption. Facing constant threats from fellow inmates, Yo Han relies on his intelligence and fighting skills to survive. An unexpected ally emerges in Oh Soo Yeon (Lee Yoo Young), a mysterious female entrepreneur who offers him a chance at revenge, but only if he helps her achieve her own hidden agenda. As Yo Han navigates the dangerous prison environment, he must decide whether to trust Oh Soo Yeon and pursue his mission of vengeance against those who destroyed his family. This is a 2022 South Korean drama series directed by Min Yeon Hong.