As author Heather Heyford pours a final glass in her series following three Napa wine heiresses, a newcomer must work her way into a tightly-knit family whose bond has been fermenting for years...
 
Though they each have their own ambitions and are known to be competitive—even with each other—the St. Pierre sisters are fiercely loyal. Chardonnay and Merlot are thrilled about Sauvignon's wedding day, and it's slated to be the soirée of the decade among Napa's most elite residents. Given the family's notoriety, it almost stands to reason that their eccentric father, Xavier, would arrive by helicopter. But no one could have anticipated the wedding surprise he'd brought along with him...
 
The product of one of Xavier's many affairs, Sake is introduced as the half-Japanese sister the St. Pierre girls never knew they had. She struggles to break into clique-ish Napa society—and getting in with her sisters is proving more difficult than nabbing a '74 Cabernet. It seems only high-end realtor Bill Diamond can tell there's more to Sake than meets the eye. Afraid of repeating her mother's mistakes, Sake just hopes that getting drunk on love won't leave her with a hangover of rejection...