Less Than Angels by Barbara Pym

Less Than Angels follows the lives of a group of anthropologists living in London and their romantic entanglements. The story primarily centers around Tom Mallow, a mature student, who is in a relationship with Catherine Oliphant, a writer on anthropology. However, things become complicated when Tom becomes interested in a young student, Deirdre Swan. The novel explores themes of academia, love, and the complexities of human relationships.