Arnie's Adult Book World is a bookstore in Toronto that specializes in pornography. In "Only the Lonely", Nick Knight and Don Schanke are tracking a serial killer who has been preying on clients of the Singular Interests Introduction Service. They are particularly interested in talking to an ex-employee, and finally track him down and arrest him just outside the delivery entrance to Arnie's Adult Book World. When Nick questions the man under hypnosis, he confesses that he stole a data disk from the dating agency when they fired him. He sold it to a nameless man in a white van with flowers painted on its side—this being, of course, the killer whom Nick and his partner are trying to stop.