The Cambers' once-friendly St. Bernard turns into a killer after being bitten by a rabid bat. Donna Trenton's husband is in New York trying to contain a disastrous ad campaign. Feeling abandoned by her workaholic husband, who is frequently out of town, Donna Trenton embarks on an affair with a local handyman. Left to fend for herself, she takes her ailing Pinto to Joe Cambers' garage for repairs only to be trapped with her son Tad in the sweltering car by the monstrous dog.
It happens innocently enough, but doesn't it always? A big, friendly dog chases a rabbit into a hidden underground cave--and stirs a sleeping evil crueler than death itself.
A terrified four-year-old boy sees his bedroom closet door swing open untouched by human hands, and screams at the unholy red eyes gleaming in the darkness.
The little Maine town of Castle Rock is about to be invaded by the most hideous menace ever to savage the flesh and devour the mind.