Alex, an intersexed 15-year-old, is living as a girl, but she and her family begin to wonder whether she's emotionally a boy when another teenager's sexual advances bring the issue to a head. As Alex faces a final decision regarding her gender, she meets both hostility and compassion.

Patagonia, 1960. A German physician meets an Argentinian family and follows them on the long desert road to Bariloche where Eva, Enzo and their three children are going to open a lodging house by the Nahuel Huapi lake. Unaware of his true identity, they accept him as their first guest.