 Ted Stein (Jeffrey Kramer) is a science teacher who inherits a spooky old New England inn inhabited by its hulking, good-naturedly homicidal caretaker Frank (Jack Elam).It turns out that Ted is the descendant of the original Dr. Frankenstein and Frank is the Monster who needs a special serum every 50 years to stay alive, and he wants Ted to recreate it for him ("If you don't, I'll die," he explains, "Let me put it another way, if you don't, "you'll" die").Ted agrees to stay and continue his ancestor's experiments while keeping Frank's identity a secret.