John David Wellgood and Mary Helen Merriman, both painfully naive, find themselves stranded near a medieval castle on the outskirts of Steubenville, Ohio. They ask to use the phone to call the auto club, but then the bridge washes out and they're stuck for the night. Soon they meet Dr. Victor Frankenstein, Igor, The Monster, Count Dracula and his wife Natasha, Renfield, assorted female vampires, The Wolfman and his mother Mom Talbot, The Mummy and his factotum Dr. Abdul Nasser and, of course, assorted villagers. The arrival of John and Mary precipitates a crisis as each of the characters wants John and Mary (or both!) for his or her own purposes. Dr. Frankenstein wants John's brain for his creation and tells why in the song, "A Well-Trained Brain." Igor feels he won't be using his brain so, in "Play Your Hunch," he says it might as well be transferred into John's body. Then, in "All Eternity Blues," Dracula reveals his plan to add Mary to his harem—while feasting on John. Mom Talbot bemoans her fate as the mother of a wolfman in "The Things a Mother Goes Through."
This show provides examples of:
- Alto Villainess: Natasha is an alto role.
- Card-Carrying Villain: All of the villains in the play identify as such.
- Closed Circle: It's in the title.
- Evil Sounds Deep: Dracula, Dr. Frankenstein, and Igor are all Bass/Baritone roles.
- Irrelevant Act Opener: "Somebody's Got to Do It" opens Act 2. It has no bearing on the rest of the play and it is the only time in which the Grave Diggers chorus appears in the standard adaptation if this musical. Some adaptations however do write them into other parts of the play. Such as the end of the show, or doing something on stage during preshow/intermission.
- The Klux: Applies to John.
- The Movie: Was adapted into Monster Mash in 1995.
- No Serious Business In Show Business: This show is about as polar opposite as you can get from serious.
- Spontaneous Choreography / Summon Back Up Dancers: Most musical numbers in this play have this. The "draculletes" serving as the dancers in the majority of the songs.
- Tenor Boy: John is tenor role. Though, interestingly enough Mary is an alto rather than a soprano. Disqualifying the The Soprano trope.
- Title Drop: The opening song is named accordingly.
- Villain Song: "A Well Trained Brain" and it's reprise.
- Virgin Sacrifice: The entire plot if the show revolves around this.