William James is a young psychiatrist specialising in the psychology of stalking. A rather dry academic, but already a world authority on obsessive love - he's certainly not the type to get mixed up with beautiful women...until he's recruited by the Foreign Office to join a unique police protection unit, exclusively focused on besotted admirers who unpredictably flip into assassins. He now finds himself mingling with Philippa Foot, the unusually glamorous Foreign Secretary, and Dread, a notorious rock star. A spate of bizarre and inexplicable threats mean he's now battling with antagonistic...