Movie Story : At their 25th anniversary party, Ellen and Paul expect a pleasant evening with their son Josh, but his arrival with a new girlfriend changes everything. The woman, Liz, is a former student of Ellen's who carries a grudge from years earlier, when Ellen publicly challenged her radical beliefs in class and she left the university. As the night unfolds, the family's carefully kept calm begins to crack, and what seemed like a happy reunion becomes the start of something far more dangerous.