American Psycho by Bret Easton Ellis was everything like the movie, but in greater detail. If you thought the movie was gruesome then the book will not be for you. I found myself going nuts when I was reading this book; all the references to brand names made me want to go psycho. I guess that was part of the aim. I know most people say the book is always better than the movie but in the case of American Psycho there isn't much of a difference; the movie got the message across just as effectively as the book.