Hannah's life is almost perfect. She's a full-time mother to two young children and married to successful cardiologist Daniel. The only thing missing is a project of her own. So she has poured heart and soul into converting their stone barn into a beautiful holiday rental. Things take a dark turn when visitors Mike and Nadia come to stay. They are noisy, dirty and disrespectful. Hannah is incensed by their behaviour, worried they may wreck her lovingly restored barn. But she gradually realises that property damage is the least of her worries. Nadia and Mike aren't here just for a holiday - they have a deeper, darker purpose, one that threatens to destroy Hannah's entire life. Spiralling into a nightmare that grows worse with each passing day, Hannah has to find the courage to fight back. But Mike and Nadia are clever and ruthless and they know something that Hannah doesn't - a shocking secret from the past...