A suspicious death of a military guard happens in a town believed to have unknown fortune. The new mayor Fu Tianjing starts an investigation with his sister Ziyun, an autopsist, on the first day of his assumption. But they are just going around in circles and the case becomes more complicated. Tianjing is framed and cast into the prison by the local chief of security whose scheme to rob the grave is discovered by Tianjing. Ziyun decides to work with a young Taoist priest to continue her investigation and tries to rescue her brother. More deaths of military guards foster the rumors of "killing hopping vampires" known to the public. The town is panic-stricken. And the truth behind the ancient grave is gradually revealed along with the collision of science and superstition between the autopsist and the priest.
