Suspense stories

Good detective story with a main character and his mysterious assistant.
The violence of the beginning of the book does not persist and makes room for suspense when the resolution of very amazing murders. Also on Sunday, within 200km around the Pension young aristocrats. We immediately know the murderers and the book applies to follow in their life rich. Nothing too surprising if it is a woman in the middle of a group of crazy disoriented. Young people abandoned by their parents in a pension for rich kids promised a rosy future and mapped out. A girl tries to survive and distinguish Kimmie, she is violent, lie with anyone, and as an adult she ends up living in the streets around the station to escape his past.
A slow and bloody start an interesting suspense and bloody end a little sloppy.