Lai Chi Kok is the official of his hometown, but because of some dark secret, he is forced to appear useless and loses the support of the townsfolk. The only way to make up for the situation is to dress up as a vigilante in the mask.

Chung Wan and Chi Kok are engaged, but she will only marry him if he is willing to be a great official. Bo Lum is from the pugilistic world, who searches for Chi Kok to marry her because of a joke. Lok Fu is the best friend of both Wan and Chi Kok. However, he discovers he has a deadly sickness.