Three hundred years ago, villagers from a fishing village on an island killed a group of passing soldiers escorting tribute, and accidentally awakened a Qin corpse, which they sealed with the power of a treasure. Since then, the villagers here have not engaged in production but have lived a carefree life with their ancestral treasures. Shi Chun (Yuen Kui), a police officer stationed on the island, suspected that the villagers were making drugs for profit, and ordered his two assistants Chen Longshi (Alex To) and Xiao Gangpao to investigate for a long time but found nothing. On this day, a troupe came to the island to perform. Shi Chun, who suspected that the troupe and the villagers were colluding in drug trafficking, came forward to investigate, and unexpectedly made the troupe's Jiu Jie (Sandra Ng) fall in love with him at first sight. That night, Jiu Jie and A Qiu (played by Chen Shulan) and Teacher Lin (played by Lowell Lo) from the troupe accidentally obtained a treasure map leaked from the villagers. The three tried to take the treasure of the village for themselves, but alarmed Qin's corpse and caused it to reappear in the world. The vengeful soul went on a killing spree in the village. In order to slay the demons, Shi Chun took risks to find an ancient treasure - Zhong Kui's sword.