Strange things begin to occurs as a tiny California coastal town prepares to commemorate its centenary. Inanimate objects spring eerily to life; Rev. Malone (Hal Holbrook) stumbles upon a dark secret about the town's founding; radio announcer Stevie (Adrienne Barbeau) witnesses a mystical fire; and hitchhiker Elizabeth (Jamie Lee Curtis) discovers the mutilated corpse of a fisherman. Then a mysterious iridescent fog descends upon the village, and more people start to die.