Movies are meant to be entertaining, but that doesn't always mean sunshine and happy endings. Entertainment comes in all forms, and some fans of the thriller and horror genres find the feeling of tense and uncomfortable scenes give them to be fun. The appeal of films that induce the feeling of claustrophobia is that they make whatever stakes are happening onscreen feel heightened. It becomes more exciting and harder for a viewer to lose interest.
Source：https://www.cbr.com/greatest-movies-with-small-sets/
