For just about everybody, adolescence means having to confront a number of choices and life decisions, but rarely any as monumental as the one facing 15 year-old Alex (Ines Efron,) who was born an intersex child. As Alex begins to explore her sexuality, her mother invites friends from Buenos Aires to come for a visit at their house on the gorgeous Uruguayan shore, along with their 16-year-old son Álvaro (Martin Piroyanski.) Alex is immediately attracted to the young man, which adds yet another level of complexity to her personal search for identity, and forces both families to face their worst fears.