Modelo Prison. Barcelona, 1977. A young accountant, awaiting trial for embezzlement with a possible 20 years sentence, joins a group of prisoners demanding amnesty.

The Spanish Deep South, 1980. A series of brutal murders of adolescent girls in a remote and forgotten town bring together two disparate characters – both detectives in the homicide division – to investigate the cases.

It is summertime in a blue-collar, marginal district of a city in the South of Spain. Tano, a teenager currently serving a sentence in a juvenile reform center, is given a 48-hour leave to attend his brother’s wedding.