As a teen, party girl, Sabrina Spencer was the lone survivor of a serial killer's attack on her family. Her testimony put the killer behind bars, and she spent the following decade carving out a new life and trying to forget. But someone hasn't forgotten. Two weeks before Christmas, she begins receiving bizarre messages with demented references to the Twelve Days of Christmas. Handyman Josh Cravens is remodeling the lake house she rents each year to escape the painful reminders Christmas brings. While his dimples and blue eyes are hard to resist, he's the exact kind of player she's been avoiding since she outgrew her wild days. But the isolated cabin and threatening messages boost her paranoia to fever pitch. As Christmas draws closer, she's torn between finding comfort in Josh's arms, and fear that he might be behind the twisted countdown to the twelfth day.