The Dark Half. Poster of the 1993 movie and cover of the 1989 book
VS3
The Dark Half
Stephen King, 1989
movie vs book
George A. Romero, 1993

An author of highbrow literary novels, Thad Beaumont, is better known for the bestselling murder mystery suspense-thrillers he writes under the pen name George Stark. However, Stark has mysteriously become a physical entity and begins terrorizing Beaumont’s family and friends after he emerges from the grave.