

While at Cambridge she becomes romantically involved with Tony Canning, a professor, who before abruptly ending the affair secures a position for Serena with MI5. But she struggles academically, and graduates with a third.

Serena Frome ("rhymes with plume"), the daughter of an Anglican bishop, shows a talent for mathematics and is admitted to the University of Cambridge. Critical reception was mixed some reviewers found the novel moving and poignant, while others saw it as weaker than much of McEwan's previous work. He is not referred to directly in the book, but he did play a part as the host of a real-life literary event fictionalised in the book, involving McEwan and Martin Amis, who does appear in the story. The novel is dedicated to McEwan's late friend Christopher Hitchens. The story explores the relationship between artistic integrity and government propaganda, and addresses competing approaches to literature the boundary between reality and fiction is tested throughout. McEwan wanted to write a novel dealing with the social turmoil of the 1970s, and Sweet Tooth is to a large extent based on his own life. When she becomes romantically involved with her mark, complications ensue. After graduating from Cambridge she is recruited by MI5, and becomes involved in a covert program to combat communism by infiltrating the intellectual world. It deals with the experiences of its protagonist, Serena Frome, during the early 1970s.

Sweet Tooth is a novel by the English writer Ian McEwan, published on 21 August 2012.
