Unmasked (Korean: 트리거) is an ongoing South Korean office humor action thriller television series written by Kim Gi-ryang, directed by Yoo Sun-dong [ko], and starring Kim Hye-soo, Jung Sung-il, and Joo Jong-hyuk.

Set in modern-day Seoul, the series follows a team of investigative journalists racing against the clock to save their careers.

A group of investigative journalists are in danger of losing their jobs after releasing a highly contentious report that enraged sponsors.

Solving a 20-year-old cold case involving the enigmatic disappearance of a well-known actor is the team's last chance to salvage their careers.

The group is pushed to the limit and forced to face the moral conundrums of their line of work as they pursue the investigation further and discover a web of secrets and conspiracies.