Ian McEwan's novel of love and deception set in MI5 during the early 1970s, read by Amelia Bullmore.
Episode 4: Serena is given her first real mission for the Service; its codename is Sweet Tooth. Just as she's promoted, her friend Shirley is sacked - and she tells Serena she's being watched too.
Abridged and produced by Christine Hall. Show less