Who exactly is the world's boyfriend? His name is Walter Arias, and he is an explosive mix of many things: a surrealist philosopher and an anti-Freudian psychoanalyst, a romantic and a sex addict, a harlequin and a monster, a moralist and a criminal - a mix of all that cannot or should not be combined. He is the founder of the philosophical movement Walterism, one of the least spiritual among all of the millennium's spiritual tendencies. Cynical and ruthless, funny and macabre, Walter Arias narrates his ups and downs, his courtship with the world, in this hilarious thriller which combines the picaresque and the metaphysical. In this novel, Felipe Benitez Reyes displays all of his humour and caustic wit.