After an encounter with aliens, a wealthy women grows to, surprise surprise, 50 feet tall. With her new found size she decides to get revenge on her husband and others that annoyed her.
In the not too distant future, a very smoggy and overpopulated Earth government makes it illegal to have children for a generation. One couple, unsatisfied with their substitute robot baby, breaks the rules and gets in a lot of trouble. (Z.P.G. stands for Zero Population Growth).