Santi, a young high-school student with a serious physical reaction to sunlight, is forced by his health to move with his single mother to a shadowy, isolated village in the mountains of Spain where the inhabitants begin to reveal themselves as strangely xenophobic. When terrible, violent events begin to occur, Santi becomes first a pariah at school and then strongly suspected by the police of hideous murders. Santi himself, however, wonders if he is not the next victim.

In this Spanish comedy-drama, a man befriends his wife's lover in an attempt to understand what has happened to their marriage and win her back.

Laura and Carlos love each other as if every day was the last, and perhaps that first love intensity is what will tear them apart a year later.