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Dr. Victor Frankenstein IV (John Abbott), a descendant of the scientist who "created" Herman Munster, has in his possession a primitive, brutish Herman lookalike named Johann (also Fred Gwynne). Unfortunately, Johann escapes from Dr. Frankenstein's lab at precisely the same time that his Herman and his wife Lily have arrived at a small motel for their second honeymoon--and the inevitable mixups wreak havoc on all concerned. Incidentally, one scene finds Johann watching a TV broadcast of an old cartoon series named Calvin and the Colonel--which, like The Munsters, was produced by Joe Connelly and Bob Mosher (who also wrote this episode).