Beware of things that go bump in the night.
A pair of ’50s teenagers — she’s a telephone operator, he’s a radio DJ — follow a trail of bread crumbs and find something unexpected in a smart new low-budget sci-fi flick.
Someone, or something, is sending a strange, crackling noise out across the airwaves, while almost everyone in town is camped out at a high school basketball game.
Meanwhile, a couple of rattled radio listeners call in with conspiracy-tinged explanations of what might be just outside everyone’s window, hovering in the skies above.
The truth is out there.