Ian Rankin

Scottish homicide detective John Rebus has been sent from "North of the Border" to help London police catch a serial killer with a gruesome M.O. Teamed with a London cop he wants to trust but can't, Rebus lets a beautiful psychologist into the case develops a bizarre portrait of a killer who leaves bite marks and …

Watchman is a 1988 novel written by Ian Rankin, and is one of the author's earliest works. Originally published in 1988, it was reissued with a new introduction by Rankin in 2004.