Meet the Applegates

Meet the Applegates is a 1989 American black comedy film directed by Michael Lehmann. It was filmed in 1989, but not released until 1991. It takes a dark, satirical look at the end of the world, nuclear holocausts, alienism and terrorism. It was filmed in Oshkosh and Neenah, Wisconsin. It has gained a cult following.

They each show their true bug form at least once in the filmJohnny does while smoking marijuana with his metalhead buddies, Sally while being raped by the jock, Richard when infiltrating the nuclear plant, and Jane when two Family Bazaar agents come to their house. As they drift away from normality and nearly been found out by the neighbors their aunt, Bea, is sent to help. She becomes a nuisance and they decide she should be taken care of. Richard decides to not blow up the plant, and kills Bea instead. At the end of the movie they return to their lives in Brazil, and are visited by the townspeople that grew to love them, although the plant did not blow up, enough radiation was released to remove the hair from much of the towns population.

Source: Wikipedia