Please answer the following question: Build a movie plot around this: How Frankenstein related to Felix Flanken? His Sister's Son
A:
NOTE: All voices by Allen Swift, except where noted.Baron von Frankenstein [voice of Boris Karloff], the scientist who discovered the secret to creation, has just perfected the secret to destruction. In order to celebrate his discovery, the baron invites all his monster friends -- Dracula, the Werewolf, the Mummy, the Invisible Man, Dr Jekyll/Mr Hyde, the Creature from the Black Lagoon, and the Hunchback of Notre Dame -- to his Caribbean Island of Evil for a big party. The baron also has another reason for hosting such a gala. He has decided to retire as head of Monsters Incorporated and to pass on his secrets to his only "living" heir -- geeky, allergy-ridden pharmacist Felix Flankin, son of the baron's sister, the white sheep of the family. As the SS Herring bearing all the guests nears the island, the baron briefs his zombies about the necessity of remaining calm and collected no matter what happens. Only Yetch is having trouble keeping his head (and hands) attached. This is partly because it's been so long since Yetch has seen all their friends, but also because he is besotted with the baron's secretary, the lovely, well-stacked, red-headed, cool-as-a-cucumber Francesca [Gale Garnet].As the baron and Francesca prepare to greet their guests, they are joined by Frankenstein's Monster and his Mate [Phyllis Diller]. First to arrive is Dracula, who is enchanted to see Francesca. ("You have always been my type...O-negative, isn't it?") Next is the Werewolf. ("Wolfie, you old dog! This convention is going to be a howling success!") The Invisible Man arrives. ("You're looking well...I think.") The Hunchback carries in the Mummy, then comes Dr Jekyll/Mr Hyde, followed by the Creature. Meanwhile, in the kitchen, Chef Mafia Machiavelli is preparing the menu for the party. There's octopus soup and a poison ivy salad with toadstools, poison berries, and three kinds of dressings -- arsenic, cyanide, and nitroglycerin. The antipasto consists of black widows marinated in their own poison, smoked lizards and snakes, and...