The Matlock Paper by Robert Ludlum

James Barbour Matlock is a Vietnam veteran and college professor - but now the US government have an assignment for him. They want him to investigate what seems to be a large-scale dope and prostitution business; and they'll go to any lengths to find the answers they need. cares for most are under threat. Would he have accepted the job if he'd known just what it would mean? the perfect man for the job - for a reason that is deadly, violent and extremely disturbing...