Gremlins (1984)

Randall Peltzer: Well, that's the story. So if your air conditioner goes on the fritz. Or your washing machine blows up. Or your video recorder conks out; before you call the repairman, turn on all the lights, check all the closets and cupboards, look under all the beds. Cause you never can tell. There just might be a gremlin in your house.