True crime writer Wylie Lark, snowed in at an isolated farmhouse where she's retreated to write her new book, finds a small child in the snow outside and, bringing him inside for warmth and safety, learns that the farmhouse isn't as isolated as she thought.
A pregnant detective, still haunted by the cold case murder of her best friend decades earlier is forced to relive the past and finally understand what happened when new evidence comes to light and the case is reopened.