The Tremor of Forgery is considered by many to be Patricia Highsmith's finest novel. Set in Tunisia in the mid-1960s, it is the story of Howard Ingham, an American writer who has gone abroad to gather material for a movie too sordid to be set in America. Ingham is cool towards Ina, the girlfriend he left behind in New York, but his feelings start to change when she doesn't answer his increasingly aggravated letters, and John Castlewood, the filmmaker...