Two missing children emerge from a mountainside cave, and bring with them a sinister force of darkness in this supernatural thriller from writer/director Adrián García Bogliano (MASSACRE, TONIGHT, PENUMBRA). Félix (Francisco Barreiro) and Sol (Laura Caro) were vacationing in Tijuana with their adventurous pre-teens Sara (Michele Garcia) and Adolfo (Alan Martinez) when they pulled into a remote gas station, and let the two siblings explore a nearby hill. Later, when darkness falls and the children are still nowhere to be found, the panicked parents begin to fear the worst. The next day, however, Sara and Adolfo reappear as quickly as they vanished. They claim to have lost their way in a dark cave but their unusual, occasionally frightening behavior tells an altogether different story. Convinced that something ominous is afoot, the concerned parents decide to investigate the strange events of that fateful day, and discover that their two beloved children may be in the grip of infernal forces that are threatening to destroy their family, and consume their very souls.