After the defense calls Rebus's interrogation methods into question at trial, the prosecution drops its case against Daniel Carr, the accused murderer in a drug-related killing. Soon after, Carr himself winds up murdered.

As Edinburgh prepares to host the world trade summit, crowds of protesters roil in the streets. An unidentified body turns up on the grounds of the inn where the heads of state will stay. Later, a junior minister jumps-or falls-to his death.

Immediately before his induction as the new moderator of the Church of Scotland, Rev. Derek Brady is found naked in a popular lovers' lane alongside a married woman; both have had their throats slashed.

During the investigation of an art dealer's murder, a temper tantrum lands Rebus in remedial training-the last chance at redemption for mavericks and marginal performers.