Set in the 1950s, a switchboard operator and a radio DJ discover a strange audio frequency. Shot on a tiny budget, this sci-fi mystery uses long takes and crackling dialogue to create more suspense than most $200M blockbusters.
If you're a fan of the darker side of cinema, Amazon Prime has plenty of horror and sci-fi films to choose from. Here are some of the best Amazon Prime films in these genres: best amazon prime films best