Driven by guilt, biotechnology researcher Amanda Aligheri spends every waking moment in her Silicon Valley laboratory. Desperate for a change, she makes a New Year's resolution: go to Napa, relax, and achieve some balance. The problem? There's no chance to soul-search while tempting-as-sin winemaker Liam Flynn is around. Mandy and Liam have history together, and one glance at his easy smile reminds her exactly why she fell for him the first time.

A software engineer at heart, Liam Flynn left a lucrative position at a San Francisco tech company in order to help his dad manage their third-generation family winery, and he's done his best to take the business to the next level. Two years ago, sparks flew between Liam and Mandy, but the moment he mentioned commitment, she turned and fled back to the safety of her lab. When Mandy shows up at his winery, she's just as beautiful, intelligent, and stubborn as he remembers...but this time Liam isn't giving up without a fight.

Will one romantic, wintery week in Napa be enough for Liam to convince Mandy he's the one for her, or when the new year comes will she forget about her resolution and return to Silicon Valley—and her research—without him?