A Rankin/Bass Productions Stop Motion puppet animated (called "Animagic") feature-length production from 1967, Mad Monster Party is a get together of many classic monsters, as designed by MAD cartoonist Jack Davis. Baron von Frankenstein (voiced by Boris Karloff), creator of the Monster and his Mate, has created a vial of potion capable of destroying matter. Delighted by his latest success, the Baron decides to retire while he is still on top, and invites nearly a dozen monsters to the Isle of Evil for a party. There, at the party, he intends to retire as head of the Worldwide Organization of Monsters, and hand over the position, and the secret of destruction, to his nephew, the nerdy Felix Flanken.Attending the party are the Monster and his Mate (voiced by Phyllis Diller), Dracula, the Werewolf, The Hunchback of Notre Dame, The Invisible Man, the Creature, Dr. Jekyll and his alter-ego, and the Mummy. Also present are the Baron's assistant, the attractive redhead Francesca, and the zombie butler Yetch who is obsessed with her. Not invited to the party is a monster the Baron only refers to as "It," who, in the climax, is revealed to be King Kong.Needless to say, when the monsters find out that the Baron is handing over his secrets to his nephew instead of one of them, they are outraged. Hilarity and chaos ensue.The film was under-promoted and did poorly in its theatrical release, but has since become a cult classic. Five years later, Rankin/Bass would give the film an unofficial (and somewhat illogical) sequel of sorts, Mad, Mad, Mad Monsters (1972), a 2D television film for the anthology series ABC Saturday Superstar Movies, using most of the original Jack Davis character designs, though dropping Phyllis Diller for a "Monstress" who somewhat resembled this film's Francescanote .Today, Mad Monster Party is considered by many to be the precursor to The Nightmare Before Christmas.
Tropes present in Mad Monster Party include: