Make no mistake about it: The cosmetic industry can be quite ugly. That's what Mary Kay (Shirley Maclaine), the leader of one cosmetics company, finds out when an upstart firm with lots of buzz led by Jinger Health (Parker Posey) starts fighting lacquered tooth and manicured nail to unseat Mary Kay. But with the help of her brilliant assistant, Lexi Wilcox (Shannen Doherty), Mary Kay's determinated to annihilate the competition.