The story of the Massacre of Glencoe in 1692 is still widely told around the Highlands of Scotland. The Campbell Dragoons came, asking for shelter from the Glencoe MacDonalds. They were fed and housed for two weeks before they arose one night and butchered their hosts in their beds. Anna takes her two small sons to a cottage in Glencoe for the summer. She meets Calum, who is dealing with a crazed ex-girlfriend, Helena, but there is something more sinister lurking around Anna's cottage. Her six-year-old son is talking to ghosts and Anna is having violent dreams, reliving the night of the massacre as Kirstin MacDonald, who died horribly from frostbite, screaming for her missing son, two weeks after the massacre. With the help of an eccentric local historian and his sidekick, they try to save Anna's son from Kirstin's ghost, but things are not what they seem.