A brutal sexual murder of a minor revolts the anger of the town. On the other hand, a psychologist, Sofia Belmar is not only shocked by the event, but this also brings back some of her more gruesome memories.
Shy sixteen-year-old Stacy Collins can't believe that the most popular guy in school, an attractive athlete named Bobby Tennison, is interested in her. At first she is flattered by his constant attention, but then he becomes possessive and jealous-telling her who she can speak to and what she can wear. Threats escalate into violence when Bobby thinks Stacy has stepped out of line. Soon she is walking on egg shells and living in fear. Having seen the tell-tale bruises, Stacy's best friend convinces her to break things off with Bobby-but in a moment of weakness, Stacy goes to meet him. It will be the last time she is seen alive.
Aging ex-soldier Theo meets weekly with prostitute Olga to reminisce. After Olga's murder, Theo seeks bloody revenge, attracting attention of alcoholic cop Iborra and hitman Herodes.
During the summer, thirteen-year-old Sofia moves to the country house, where her cousin Cristina is waiting for her to spend the vacations. During these days of games and discoveries, the two will be immersed in a love triangle with a man almost twenty years older. Its outcome will mark the passage from puberty to adolescence for both of them.