James Parker lives in the heart of the Lake District with his wife, Emma, and their three young children, Poppy, Finn, and Millie. He thinks his life is perfect. That is, until the unthinkable happens and Emma is struck down by an unknown car and left for dead late one winter's night. As James is forced to fight for his family, he begins to question everything and everyone that Emma knew. But before he can make the decision that will shape his family's future, he needs to know - who had committed this horrific crime and why would someone want to hurt his wife?