We're capable of understanding that someone has to drop an atomic bomb on a town of innocent civilians, but not that others have to cut up prostitutes who spread disease and moral depravity in the slums of London. Hence we call the former realism and the latter madness.
Jo NesboMany Scandinavian writers who had made their name in literary fiction felt they wanted to have a go at the crime novel to show they could compete with the best. If Salman Rushdie had been Norwegian, he would definitely have written at least one thriller.
Jo Nesbo