When actress Evie Lawrence is injured in a hit-and-run accident, she wants nothing more than to retreat to her woodland home in Wicklow to recover. But when she's forced to admit that she needs help, her grand-niece Amber is volunteered by her mother to move into Heronbrook House for a few weeks to take care of her. However Evie has been estranged from her sister's family for many years and hopes that Amber's arrival doesn't mean that her dark secrets, or what happened in Heronbrook years ago, will be uncovered. At first, Amber - preoccupied by turmoil in her professional life and her love life - is happy to be kept at a distance by her great-aunt, but soon becomes very curious about the family rift and why they have never met until now. And when unsettling incidents begin to make Evie's secluded home feel less peaceful and more dangerously isolated, Amber starts to suspect that what happened to Evie wasn't an accident at all - and the person responsible still has Evie in their sights. But can Amber persuade Evie to confront the past and get to the truth before it's too late?