Premise: The Twilight Zone is an American television anthology series created by Rod Serling . The episodes are in various genres , including psychological horror , fantasy , science fiction , suspense , and psychological thriller ; and often conclude with a macabre or unexpected twist , and usually with a moral . A popular and critical success , it introduced many Americans to common science fiction and fantasy tropes .
Hypothesis: The Twilight Zone is a series about science fiction.
Label: ENTAILMENT