When Ellen and Paul’s son introduces his new girlfriend one lovely afternoon at their 25th anniversary party, no one suspects that it is the beginning of the end for this happy family. The new girlfriend is Liz, Ellen’s former student expelled from the university some years before for her radical views. Her charming appearance hides great ambition, but no scruples at all. With each successive anniversary, Liz’s influence on the family grows stronger and more destructive, and the new ideology she promotes, called “The Change”, gains more and more publicity. Previously concealed family conflicts gain new strength as the country teeters on the brink of collapse.