While checking down in the sewers a couple of city maintenance men find an ancient urn holding ashes. One of them tips the ashes out and continues on with his work. After the two men separate to work in different areasone of them is attacked by a ghostly Chinese woman. The next morning the Legacy gets a call from a Chinese friend who asks them to help investigate the circumstances behind the two missing maintenance workers.

During the 17th Century a suspected witch is 'tested' by being dunked in water, as she goes to her death she curses the next thirteen generations of the Witchfinders family. While guest lecturing at a Boston University Derek gets involved in a series of murders/deaths that seem to involve the same family and could be connected to the long rumoured curse.