A sprawling science fiction horror novel by Stephen King. The story begins when writer Bobbi Anderson discovers a strange metallic object buried in the woods near her home in the small town of Haven, Maine. As she slowly excavates it, an invisible force begins affecting both her and the town's residents.

The mysterious object turns out to be an ancient alien spacecraft. Its presence grants the townspeople extraordinary intelligence and technological abilities, but at a horrifying cost: they gradually lose their humanity, becoming physically and mentally transformed under the influence of the alien force.

Only Bobbi's close friend, the alcoholic poet Jim "Gard" Gardener, appears resistant to the spacecraft's effects. As the town falls deeper under its control, Gard must uncover the truth and stop the terrifying transformation before it becomes irreversible.

Blending science fiction, cosmic horror, psychological suspense, and small-town drama, The Tommyknockers explores obsession, addiction, power, and the dangers of unchecked scientific curiosity. It is one of Stephen King's most imaginative and unsettling novels.