Locked away from sight in Turin Cathedral lies a 14ft long piece of linen. Scorched, patched and yellowed with age, it bears the faint image of a crucified man. Is it the work ot^a 14th-century artist, or is it the miracle of miracles - a true image of Jesus of Nazareth? To help answer that question, the Holy Shroud of Turin has been tested by the most advanced science known to man. Tonight Q.E.D reports on the investigation, and reveals the surprising result of its own unique experiment.