David Szalay 
London and the South-East [EPUB ebook] 

Paul Rainey, an ad salesman, perceives dimly through a fog of psychoactive substances his dissatisfaction with his life- professional, sexual, weekends, the lot. He only wishes there was something he could do about it. And 'something’ seems to fall into his lap when a meeting with an old friend and fellow salesman, Eddy Jaw, leads to the offer of a new job. But when this offer turns out to be as misleading as Paul’s sales patter, his life and that of his family are transformed in ways very much more peculiar than he ever thought possible.