During an epidemic outbreak of Joseon, rumors spread about a dreadful man-eating creature that wrecks its plague-infested capital. Upon King’s order, an unsung military official, Yun Kyum, his daughter Myung, an archery prodigy and other warriors head for the capital to fend off the beast.

When his client suddenly confesses to murder in open court, a hotshot attorney embarks on a search for truth to redeem his ruined reputation.