The author Michael J. Behe is a Professor of Biochemistry at Lehigh University. The author states very early in the book that he is not a creationist, he believes that the earth is billions of years old and even believes that all life probably came from a common ancestor. So why did he write the book? The answer is simple he sees the problems with the theory of evolution and wants to set the facts straight. The reason I bring this all up is so that you understand that he is not coming at this with a bias based in religion. He is debunking Darwin's theory of evolution by scientific facts because it just won't work.
Quotes from the book:
Darwin knew that his theory of gradual evolution by natural selection carried a heavy burden:
If it could be demonstrated that any complex oragn existed which could not possibly have been formed by numerous, successive, slight modifications, my theory would absolutely break down. (page 39)
Richard Dawkins explains:
Evolution is very possibly not, in actual fact, always gradual. But it must be gradual when it is being used to explain the coming into existence of complicated, aparently designed objects, like eyes. For if it is not gradual in these cases, it ceases to have an explanatory power at all. Without gradualness in these cases, we are back to miracle, which is simply a synonym for the total lack of explanation. (page 40)
In summary, as biochemist have begun to examine apparently simple structures like cilia and flagella, they have discovered staggering complexity, with dozens or even hundreds of precisely tailored parts. It is very likely that many of the parts we have not considered here are required for any cilium to function in a cell. As the number of required parts increases, the difficulty of gradually putting the system together skyrockets, and the likelihood of indirect scenarios plummets. Darwin look more and more forlorn. (page 73)
Speaking of the blood clotting system in humans the author had this to say:
I emphasize that natural selection, the engine of Darwinian evolution, only works if there is something that is useful right now, not in the future. Even if we accept his scenario for the purposes of discussion, however, by Doolittle's own account no blood clotting appears until at least the third step. The formation of tissue factor at the first step is unexplained, since it would be sitting around with nothing to do. (page 95) Emphasis in the original.
Many scientists are skeptical that Darwinian mechanisms can explain all of life, but a large number do believe it. Since we have just seen that the professional biochemical literature contains no papers or books that explain in detail how complex systems might have arisen, why is Darwinism nonetheless credible with many biochemists? A large part of the answer is that they have been taught as part of their biochemical training that Darwinism is true. To understand both the success of Darwinism as orthodoxy and its failure as science at the molecular level, we have to examine the textbooks that are used to teach aspiring scientist. (pages 179-180)
The book is very technical in many places, but well worth the effort to read. Not only as a resource to refute evolution, but as a book which brings glory to God by describing how wonderfully He designed and made us.