... you can learn from:
The Fog (1980)
Stevie Wayne: I don't know what happened to Antonio Bay tonight. Something came out of the fog and tried to destroy us. In one moment it vanished. But if this has been anything but a nightmare and if we don't wake up to find ourselves safe in our beds it could come again. To the ships at sea who can hear my voice, look across the water into the darkness. Look for the fog.
Happy 70 to the living legend John Carpenter!