In 1937, a Japanese organization was on a secret mission to obtain "Jing Tai Shuang Long," a pair of valuable vases made during the Qing dynasty. When its mission became known to the Chinese government, the descendant of Shuang Long's maker began to die one by one under mysterious circumstances. Xing Wen Yuan, the surviving member of the family, must protect the artifact, track down the Japanese agents and find the mysterious killer before all is lost.