Ver Cuevana 3. The story means to develop through an uncovering of layers - strata. As writer Krumbachova stated: "With nature as a prison, an impassable barrier ... where every action is physically and psychically limited by the environment ... people are reduced to fragments of basic instinct and intelligence." Promoted as a psychological thriller, Strata provides little tension nor any real climax. The characters are ideas - not believably real.