A group of teenagers is parting in a quincho at night, when suddenly one by one they start to disappear without explanation. When the rest of the group start to investigate the mysterious disappearances, they will end up face to face with the most violent and masochist killer that ever existed (The ending will shock you). Scholars have proposed that the real theme of the film is "family", but there is great debate about this topic. No consensus has been reached, and the courts are still undecided about the issue.