When a fresh faced nanny arrives at her new job on a creaky farm in the English countryside, she is instantly caught up in the turbulent relationship of her employers. James is struggling to provide for his family and Rachel, an inexperienced mother, is unable to cope with the demands of her new born baby. When night falls and James fails to return, a sinister intruder invades the property, unravelling a night of gruesome blood-shed and unprecedented terror. But who is behind it? What do they want? Can anybody escape alive?