Orphaned as a child after the bizarre deaths of her parents, Mira has been tormented by visions of 'ghosts' ever since puberty. As a carrier of the Fragile-X gene, her eyes have crystallised more than usual, causing her physical and emotional pain. Diagnosed as blind-sighted and institutionalised in the Serenity Centre - a sanctuary for handicapped adults - she can see convicts of the past, yet she cannot see any of her real surroundings or even her own body. After a number of failed escape attempts, Mira has regressed under increasing medication to a near-child-like state; paranoid, terrified and unco-operative. Then two medical specialists arrive at Serenity to do a health survey - while secretly testing new technology that interrogates the human subconscious. The project leader is also selling military secrets, and when he murders one of the bodyguards to cover his crime, Mira is the only witness..