6 Horror Movies Based On Even Scarier Books

The movie Psycho is mostly faithful to the book, though a lot of the details of Norman Bates, the troubled killer in both, are changed. In the book, he is immediately scummier and more obviously scary than in the movie. In the novel, Bates is also a slovenly drunk who immediately makes readers wary of him, whereas in the movie, he is presented as somewhat clean cut and normal before being revealed as the killer. This changes the nature of the terror in the book. It works very effectively, scaring readers with his potential and allowing imaginations to run wild, as a book should do.

Article source: https://www.cinemablend.com/news/2476264/horror-movies-based-on-even-scarier-books