The Mirror Man (Joona Linna #8 - Lars Kepler

Seventeen-year-old Jenny is abducted in broad daylight and taken to a dilapidated, isolated house where she is chained and caged along with several other girls. Their captor is unpredictable, and as wily as he is cruel: he foils every one of their desperate attempts to escape . . . and once caught, they rarely survive their punishment.