It is estimated that for every serial killer and more extreme form of psychopath, there are 20,000 others out there in society, living and working alongside you...They are the most warped, troubled people on the planet. Their sinister imaginations are a mystery to everyone but themselves. And yet these twisted individuals have infiltrated the highest echelons of our society. This book shows how. Criminal psychologist John Clarke and London police officer turned writer Andy Shea delve deep into the minds of psychopathic killers, rapists and white collar criminals. With a wealth of first-hand knowledge at their fingertips, they analyse the motives, the methods and the devastating impact that psychopaths have on their victims.