Apparently loosely based on a true story, the movie stars Dan Akyroyd (it's also directed by him as well), Chevy Chase, Demi Moore and the always great and (it pains me to say this) late John Candy.
Chevy Chase and Demi Moore play a couple who end up in the town of Valkanvania after having a run in with the police, and the end up at the judge's house where they meet the crazy J.P Valkanheiser and Bobo and Lil Debul as well as the police cop's sister Eldona (also played by John Candy).
The judges house is filled with all sorts of kooky mechanical devices, and all sorts of hijinks insue in this.
A lot of critics tend to bash this one on the grounds of it's plot, but it's supposed to be weird because it's a black comedy and it doesn't have to make sense for you to enjoy it.
I heavily recommend watching this movie.