Cristina has spent her life taking care of her mother Carmen. Single and without a trade or friends, she grows older, year after year in her hometown. A few days from her birth- day, Cristina reconnects with Sandra, a former schoolmate who will show her other ways to live, freely and without prejudice.
Cecilia Ureta, host of Chile's highest-rated news show, announces the results of a United Nations survey, the conclusion of which states that 62% of Chilean women are or have never been unfaithful. Ironically, Cecilia maintains an extramarital relationship with the network's owner. Maliciously, a rival colleague discovers this during a live broadcast, with tragic results. The revelation spreads becoming a conversation of national interest.
In Santiago, Chile, the schoolteacher Luisa proposes a debate about sex with the parents of her students with the intention of giving classes about sex education to the youngsters.