Ruth Patchett has a good life, her husband Bobbo tells her so. Ruth is lucky to have such a good-looking husband, the neighbours often remark on it. With so little self confidence, it's no surprise that Ruth falls apart when Bobbo begins an affair with the romantic fiction writer Mary Fisher.Fay Weldon's The Life and Loves of a She Devil follows Ruth Patchett's journey in the aftermath of her husband's desertion. It's Bobbo who calls Ruth a she devil, and her acceptance of his accusation sets her free from the downtrodden life she has led up to then. Ruth sets about transforming herself and her life, appropriating power, and in so doing, she exacts revenge on the lovers.