1967: Concerts, hippies, and war protests define the counterculture revolution that flourishes during the Summer of Love in San Francisco. No one is more into the messages of love and peace than Winnie Hartley, who has just graduated from UC Berkeley, determined to make it as a poet. When she reconnects with her high school boyfriend, Lincoln Salyer, it feels like her life is finally everything she wants it to be. Meanwhile, her sister Miranda throws herself into running the family business, Hartley Vineyard, determined to make California wine that rivals the French. Little do the sisters know that the choices they make and the secrets they keep will set their lives down radically different paths.

2015: Dawn Hartley has a secret that she can’t share with her mother, Miranda, who has long been her closest confidant. How can she possibly admit that she has a drinking problem to her famous vintner mother? It feels like a betrayal of her own heritage. When an assignment for work requires her to research the wildly popular Vineland novels by a famously anonymous writer, she embarks on a quest that will shake her to the core, and just might set her life on the right path at last.