Super Short Summary

Affinity by Sarah Waters is set in Victorian London and follows Margaret Prior, an unmarried upper-class woman who, while recovering from a personal loss, becomes a Lady Visitor at Millbank Prison. There, she meets and becomes intrigued by Selina Dawes, a medium imprisoned for causing a client's death during a séance. As Margaret delves deeper into Selina's life and spiritual claims, she becomes increasingly entangled in a complex relationship and mystery. Themes of depression, confinement, and romantic relationships between women are explored.