In the twilight of the 1950s, on one fateful night in New Mexico, a young, winsome switchboard operator Fay (Sierra McCormick) and charismatic radio DJ Everett (Jake Horowitz) discover a strange audio frequency that could change their small town and the future forever. Dropped phone calls, AM radio signals, secret reels of tape forgotten in a library, switchboards, crossed patchlines and an anonymous phone call lead Fay and Everett on a scavenger hunt toward the unknown.