Elton, Ben. Past mortem. London: Black Swan Books, 2005. ISBN 0-552-77123-6.

Summary: A detective inspector at Scotland Yard -- in his mid-thirties, sensitive about his height, and supposedly somewhat repressed sexually -- investigates a series of grotesque murders. The common theme is that each of the victims was, in his or her school days, a bully who physically tormented other students. Each victim is killed in a way that reflects the particular mode of torture that he or she once used on others -- for instance, the lout who poked weaker children with the pointed ends of compasses in geometry class is made to bleed to death from three hundred or so compass wounds.

The tone of the book and the general outlook of the protagonist reflected a preoccupation with the mechanics of sex and libido that I didn't care for, though it is perhaps not inappropriate in the context of the plot as it develops.