La cueva

Three boys and two girls go backpacking from the city to a paradisaical island. There they rent motorcycles, travel around the prettiest and most remote spots, camp out in the woods, on a coastal cliff, get drunk and swim in the sea. The following day they enter a deep, maze-like cave to explore it and get lost inside. If they want to survive in the cave they'll have to suffer the most extreme and inhuman experience a person could ever possibly face. They have no water, no food, no chance whatsoever. (Sitges Film Festival)