Nikki Sands is right where she wants to be, managing the luxurious Malveaux Estates in the heart of Napa Valley and sharing her life with her beloved boyfriend, Derek Malveaux.
Nikki's life takes a detour as she's reluctantly thrust into the role of event coordinator when a charismatic guru and his followers descend upon the winery's boutique hotel and spa for a transformative retreat.
Things take a dark turn during the group's first outing aboard the renowned Napa Valley Wine Train when one of his devoted followers vanishes without a trace. The shocking discovery of the missing disciple in the wine storage car—where someone has quite literally silenced him with a fatal twist—sends shockwaves through the tranquil wine country.
With her loyal best friends, Simon and Marco, at her side, Nikki once again embarks on a thrilling sleuthing adventure. As the body count rises, it falls upon Nikki to unmask a killer who's developed a chilling taste for murder.