In Argentina, between 1982 and 1985, the Puccios, a well-established family of San Isidro, an upper-class suburb of Buenos Aires, kidnap several people and hold them as hostages for a ransom.
After receiving bad news, Natalia, a young novice, returns home, where her sister Ángela asks her to travel with her and her friends to a mysterious place.
Kally is a musical prodigy trying to juggle being a classical piano virtuoso, a normal 14-year old girl, and having a secret desire to become a world-famous pop-star.