Marriage has grown stale for Mark and Emma. Their romantic anniversary weekend at their remote, snowbound lake house becomes a nightmare as Emma wakes up to find herself handcuffed to Mark?s corpse. Now she must free herself by following a series of clues masterminded by Mark himself as two murderers arrive to finish her off. Emma must use her wits and knowledge of the house to stay one step ahead of her attackers and beat them at their own game.