Behind the quiet, gentlemanly exterior of Norman Lewis lies the acute perception of one of Britain's foremost travel writers and investigative journalists. His fascinating accounts of the cultures of the world cover the Brazilian jungle, the tribes of Indo-China, the villages of Spain and his own eccentric upbringing in Enfield, where his parents ran a Spiritualist church. One of his finest books is 'Naples '44', describing his experiences as an intelligence officer with the forces that liberated Southern Italy. In tonight's film Lewis returns to this extraordinary region where the ancient Sibyl foretold the fates of emperors and kings, whose local saint can quell the lavas of Vesuvius, and where today 600 Mafiosi are on trial. Through Lewis's own idiosyncratic observations, Arena explores the life and work of a very dead-pan Englishman abroad.