Disordered Minds by Minette Walters

In 1970, Harold Stamp, a retarded twenty-year-old was convicted on disputed evidence and a retracted confession of brutally murdering his grandmother - the one person who understood and protected him. Less than three years later he is dead, driven to suicide by isolation and despair. A fate befitting a murderer, perhaps, but what if he were innocent? Thirty years on, Jonathan Hughes, an anthropologist specialising in social stereotyping, comes across the case by accident. He finds alarming disparities in the evidence and has little doubt that Stamp's conviction was a terrible miscarriage of justice. But how far is Hughes prepared to go in the search for justice? Is the forgotten story of one friendless young man compelling enough to make him leave his books and face his own demons? And with what result? If Stamp didn't murder Grace Jeffries then somebody else did . . . and sleeping dogs are best left alone . . .

The Society of Others by William Nicholson

An alienated young man can see no meaning in life. He doesn't even see the point of getting out of bed in the morning. To escape from his family he decides to set off on a hitchhiking adventure around Europe, and is picked up by a friendly lorry driver with an unusual interest in philosophy.

The Innocent by Ian McEwan

A psychological thriller set in Berlin during the Cold War, based on an actual (but little known) incident which tells of the secret tunnel under the Soviet sector which the British and Americans built in 1954 to gain access to the Russians' communication system.