A book which alternates the voices of the policeman and the killer, so you will need to concentrate; but this excellent police procedural, which is also a fascinating study of loss and loneliness, is well worth any effort.
Extract
She had seemed very calm all that time, but then she carefully put the child down beside her and slipped off the sofa in floods of tears .... Sundstrom had rung the doctor on emergency call, who came quickly and prescribed her tranquillisers.