A young chap meets his girlfriend's wealthy parents for the first time. Turns out that they're right dodgy fuckers.
People have moaned about the racial aspects of the film, some that they're underplayed, others that they're included at all.
As is pointed out later into the flick, the racial element is pretty much an irrelevance. The true moral of this flick is don't trust rich people.
Good advice, worth heeding.