Holly, Michael, Dashiell and Claudia are mortified by the seminal book their liberal parents Paul and Roz Mellow have written, a book that features tasteful pastel illustrations of their parents' lovemaking - and which has become a runaway bestseller. Thirty years later, when the children who have grown up in the shadow of these erotically charged parents are adults, and it looks as though the book may be reissued, we catch up individually with their conflicted, complicated 21st-century lives and those of the iconic couple whose marriage has not run as smoothly as it seemed set to do. Meg Wolitzer takes us into the heart of a family that is dysfunctional in its very own way but heartbreakingly familiar.