Undercover(2021)

Undercover is a South Korean drama following Han Jung Hyun, a man concealing a dangerous secret, and Choi Yeon Soo, an idealistic human rights lawyer appointed to lead the newly formed Senior Civil Servant Corruption Investigations Unit. As Yeon Soo pursues justice against powerful officials, Jung Hyun's hidden identity threatens to unravel everything. The series explores the collision between personal survival and moral duty, pitting an undercover operative against systemic corruption. Tensions escalate as both characters navigate a world where trust is currency and exposure means destruction. Undercover balances taut thriller elements with character-driven drama, examining what it costs to fight for justice when your own past is a liability.