It never really crossed my mind that there were serial killers active during World War II, especially in Europe. There was so much death, destruction, and cruelty going on in the first place that it truly didn't occur to me. This book covers the case of Paul Ogorzow, the S-Bahn Killer. He had a family, a job with the railroad, was a member of the Nazi Party, and was a Brownshirt. He used the blackout order to stalk women and the cover of darkness helped him get away with it. This was a very interesting book, and I would suggest it for anyone interested in true crime or World War II.