Prelude To Innovations in Motion

So, I had this idea for a movie that takes place all in rain (made on a sound stage once I become huge and famous with billions of dollars to spend), i have characters, now I need a story:

Rortice B. Rockertanks: Industry Tycoon
who is the brother of Lucille Dandykuts
who is married to Frank F. Dandykuts
whose long lost twin brother is Terry F. Dandykuts
whose business partner is Jerry Ghraham
whose son is Robert Graham
whose girlfriend is Amy Tumblers
whose father, Albert Tumblers,
has a second wife Kim Bumlers
and Albert's first wife is none other than Mary Tumblers Rockertanks
and there is also a saucy accountant