Ilse has had a troubled childhood in Germany where her father kept his children in a cellar and abused them, some of whom died. Ilse somehow, I don't know how, escaped and ended up in America with a degree in psychology and works for the FBI as a therapist. A serial killer seems to be targetting men who were teachers and is dissecting them whilst they are alive and bleeding to death. He uses their body parts to move about and form letters. Nice. Ilse is teamed up with agent Sawyer and together they are fighting time to find the killer and his victims, all teachers so far. It takes some time to put the pieces of the puzzle together and it is quite a ride to go through this book, very unpleasant at times and I wasn't too sure I liked Ilse as she seems a bit needy and wants to be in control whilst Sawyer is a good solid hard working agent looking at all the angles for the cases and enlisting the help of others, whereas Ilse is more of a lone player. I much prefer him to her! I leave it up to you to finish it as you might be eating your meal when reading about it.