Mike Mackenzie is a self-made man with too much time on his hands and a bit of the devil in his soul. He is looking for something to liven up the days and perhaps give new meaning to his existence. A chance encounter at an art auction offers him the opportunity to do just that as he settles on a plot to commit a "perfect crime".

Nobody likes The Complaints - they're the cops who investigate other cops. Complaints and Conduct Department, to give them their full title, but known colloquially as 'the Dark Side', or simply 'The Complaints'. Malcolm Fox works for The Complaints. He's just had a result, and should be feeling good about himself. But he's middle-aged, sour and unwell.

A missing private investigator is found locked in a car hidden deep in the woods. Worse still - both for his family and the police - the body was in an area that had already been searched 10 years ago. Detective Inspector Siobhan Clarke is part of a new inquiry, combing through the mistakes of the original case. There were always suspicions over how the investigation was handled, and now - after a decade without answers - it's time for the truth.

Interpol have tried and failed to find the terrorist, Witch. Now the combined forces of Scotland Yard and MI5 must try the impossible to prevent a major international incident. Dominic Elder carries her autograph wherever he goes. Witch is his passion, his obsession. And being retired is no bar to his willingness to restart the hunt. MI5 know that the man who wrote the Witch file is the key to catching their quarry. But the truth isn't easy to spot.

'And in Edinburgh of all places. I mean, you never think of that sort of thing happening in Edinburgh, do you...?' 'That sort of thing' is the brutal abduction and murder of two young girls. And now a third is missing, presumably gone to the same sad end. Detective Sergeant John Rebus, smoking and drinking too much, his own young daughter spirited away south by his disenchanted wife, is one of many policemen hunting the killer.