Griffin asks why our society still treats marital infidelity as an unfathomable aberration, studying various arenas including the political mistress, the writer's mistress and the artist's mistress. She examines how the roles of wife and mistress come about, how each may threaten the other, or how they may co-exist.
I absolutely love this book. So far, it's the only book on Mistresses I've ever read that paints a positive/neutral portrait of the women who became mistresses. I love the intertwining of historical information with the author's own experience. This book made me feel heard and understood, as someone who's had a very positive experience of being a mistress.