One Sunday afternoon in Southern California, Bert Cousins shows up at Franny Keating's christening party uninvited. Before evening falls, he has kissed Franny's mother, Beverly—thus setting in motion the dissolution of their marriages and the joining of two families.

Spanning five decades, Commonwealth explores how this chance encounter reverberates through the lives of the four parents and six children involved. Spending summers together in Virginia, the Keating and Cousins children forge a lasting bond that is based on a shared disillusionment with their parents and the strange and genuine affection that grows up between them.

When, in her twenties, Franny begins an affair with the legendary author Leon Posen and tells him about her family, the story of her siblings is no longer hers to control. Their childhood becomes the basis for his wildly successful book, ultimately forcing them to come to terms with their losses, their guilt, and the deeply loyal connection they feel for one another.

Told with equal measures of humor and heartbreak, Commonwealth is a meditation on inspiration, interpretation, and the ownership of stories. It is a brilliant and tender tale of the far-reaching ties of love and responsibility that bind us together.

Northern California, during the violent end of the 1960s. At the start of summer, a lonely and thoughtful teenager, Evie Boyd, sees a group of girls in the park, and is immediately caught by their freedom, their careless dress, their dangerous aura of abandon.

Soon, Evie is in thrall to Suzanne, a mesmerizing older girl, and is drawn into the circle of a soon-to-be infamous cult and the man who is its charismatic leader. Hidden in the hills, their sprawling ranch is eerie and run down, but to Evie, it is exotic, thrilling, and charged—a place where she feels desperate to be accepted.

As she spends more time away from her mother and the rhythms of her daily life, and as her obsession with Suzanne intensifies, Evie does not realize she is coming closer and closer to unthinkable violence.

The Girls is a spellbinding and arresting coming-of-age story that paints an indelible portrait of girls, and the women they become, during a time when everything can go horribly wrong.