Susanna is a pushy but seductive rock and roll icon who lives with Beale, a charming, distracted art dealer.
Unnerved by the prospect of middle-aged stasis and drawn to other lovers, the couple eventually separate. Maisie, their only child, is caught in the middle, shuttled back and forth between her parents. They each attempt to start their lives afresh and use new partners, Lincoln and Margo, as a means of competing irresponsibly for custody of Maisie.
Maisie, loving yet quietly precocious and observant, begins to understand how essentially selfish, irresponsible and damaged her parents really are, as each of their new relationships quickly disintegrate, and Maisie becomes part of the construction of a whole new family with Margo & Lincoln