Frankly, I did not find this extraordinary book that the report me. The content was downright too predictable. The wicked and the good guys were not relevant. I did not feel any "climate of terror" or "thrills and chills" or "thrilling anguish of all its twists and turns" in the words of the book spine. I am very disappointed. This book has probably won the Grand Prix of police literature in 1980, but I fear I have seen better. I still give him three out of five stars because I did find quite interesting the fact that there is more than a point of view. Each chapter changed its face. Although, I have faced some books of this kind, it is revealed by little, a little different.