Spain, 1980. Franco has died for five years, but the spanish transition to democracy is far from being completed, particularly in the social fabric. Pedro and Juan are the two faces of Spanish society. Both are policemen sent from Madrid to southern Spain, a poor and marshy area, to solve a "minor" case, the disappearance of two teenage sisters. Pedro and Juan are one the exact opposite othe other. The first is ideal, deeply anti-franchise, the second is brutal, uses unconventional methods and has a problematic past behind. The two will be involved in a jigsaw puzzle of unsolved murders, conspiracy of silence and inequities. And they will seek, in this inhospitable place, to heal that diversity of visions which is the mirror of the society of the time.