What a great film.

The Vast of Night is a 2019 American science fiction mystery film directed by Andrew Patterson. The film is co-produced and written by Patterson (under the pseudonym James Montague) and Craig W. Sanger. Loosely based on the Kecksburg UFO incident and Foss Lake disappearances, the film is set in 1950s New Mexico, where Fay Crocker (Sierra McCormick), a young switchboard operator and Everett Sloan (Jake Horowitz), a radio disc jockey discover a mysterious audio frequency that could be extraterrestrial in origin. – Wikipedia

I honestly nearly turned it off 20 minutes in, it can be very very slow at times, but the film picks up some speed, the mystery starts to develop and holy heck the ending. I loved it. A fantastic film.