At the inception of Prohibition nearing the end of World War I, Molly McGregor, daughter of an esteemed psychiatrist at the Napa State Asylum for the Mentally Insane, does not want to reside where her mother died at the hands of her father. Molly's desire to leave her father's reign, leads her to a paranoid winemaker who is convinced that someone is threatening his life. His only hope is Molly. Molly has to discern who she can trust as mayhem and murder ensues.