Lorenzo lives with his parents and brother in the small town of Patagonia in Argentina. One day, Caíto, the son of his parents' friend, stays at his house. Caíto is a shy and taciturn boy. The two with different hobbies become friends, often go cycling and mountain climbing, and have a lot in common. They also develop an ambiguous relationship. At this time, Lorenzo's parents drive Caíto out...