The descendants of Baron Frankenstein return to the family castle to search for the family fortune that is supposed to be hidden there. The descendants of Baron Frankenstein return to the family castle to search for the family fortune that is supposed to be hidden there. The descendants of Baron Frankenstein return to the family castle to search for the family fortune that is supposed to be hidden there. The descendants of Baron Frankenstein return to the family castle to search for the family fortune that is supposed to be hidden there.