When Zoe and her teenage daughter discover an ice-covered corpse at her boss’s mountain chalet, ex-Mountie Lacey McCrae trades her Christmas shopping for Victim Services duty. The dead man is Eric, an intern at the Calgary oil company where Zoe works. Reported missing after a blizzard a month earlier, he was presumed dead by misadventure. But his missing car and other inconsistencies point to a suspicious death. When someone close to Lacey goes missing in similar circumstances, she fears the two cases may be connected. With help from old RCMP colleagues and tips that Zoe swears came from a ghost, Lacey tracks a ruthless killer through the merciless winter wilderness.