During ancient times in China, a demon was captured by a priest by sealing it in a vase. Decades later, when political conflicts were high in China, the priest's descendant threw the vase in the sea in hopes that it will not end up in the wrong hands. The vase traveled all its way to Hong Kong, where it was bought by a wealthy councilman at an auction. Unfortuantely, the vase was tampered with after the purchase. The demon escaped, possessed the body of the councilman and began a spree of terror in Hong Kong, endangering the lives of many people.