DC Nicola McKenna promised her boyfriend Matt she would leave work behind for a romantic weekend in the Isle of Skye, but things get off to a bad start when a hotel mix-up leaves them stranded, just as a snowstorm is blowing in. Luckily, one last guest house on the island has room... The couple is glad to reach the safety of The Loch House, especially with little George asleep in the back, but their relief is short-lived when they are given strange rules 'for their own good' and start to hear whispers of the house's dark past. Despite her scepticism, Nicola can't ignore the gnawing sense that there is something really wrong with this place. And when her son suddenly disappears, she starts to wonder if they will ever leave here alive... As snow starts to fall, and night closes in, can Nicola solve the mystery of The Loch House before it claims another victim?