One sister went out into the dark for help. Will she come back? Returning from a difficult visit to their father, three sisters find themselves lost in a storm. Together, they seek safety in an abandoned manor house, a place where they spent a troubled childhood clinging to each other for support, before one day fleeing with their parents in the dead of night. As the storm intensifies, the sisters draw straws to decide who should go outside to get help. But as they separate, they realise they might not be alone. . . Why did the family leave so suddenly all those years ago? Who else is hiding in the house? And will the sisters survive the night?