Machines have taken over, but left humans thinking that they are still the ones in charge. The androids need humans because of the human brain fluid; without it the android brains can't work. Until the mad scientist finds out how to make this brain fluid artificially that is.
When Kelly and Michael decide to get married, they want to have an off-beat wedding without all the traditional glitz. But when their friends and Kelly's mother introduce them to the rules of engagement, a simple, intimate wedding becomes a huge production.