It has been a house of secrets for over sixty years. Bridge House, on the edge of Exmoor, is beautiful and remote, a wild place where the sound of the rushing stream is ever present. Clio is staying there with her godmother Hester, reliving happy childhood memories. Jonah, visiting the area, chances upon the house where his mother stayed as a child in the fevered atmosphere of the Second World War, a time when passions ran high. They don't know it yet, but their histories are inextricably linked. Hester knows the truth. But how much should she tell them? As the young couple become closer, Hester realizes that they must know the truth. Before it's too late.