n her sizzling new novel, Tama Janowitz moves beyond the world of the single woman, and now targets a young woman growing ever restless in her marriage, and ever hopeful that the next bed will produce someone more exciting. As she moves from man to man, Peyton Amberg slowly but surely loses her youth-fulness, her good looks, even her sanity, as her paramours become rougher. A savvy riff on the classic figure of Madame Bovary, Peyton Amberg is a caustic...