Ernie and Twink are in the autumn of their lives. In celebration of their thirtieth wedding anniversary, the couple's children send them on a Caribbean cruise. Free of chores and children, Ernie and Twink are wined, dined, and introduced to exciting people. When they meet the rich, seductive Blake and Beth, who still seem to have a perfect life together after ten years of marriage, Twink becomes infatuated with the glamour of the other couple's lives and seeks to reignite the spark in her own marriage.