The house of Highways, just outside the resort village of Seabreak, is home to Quentin Trowte and his granddaughter Jeanne. The servants live in a bungalow close by. Fearful of losing their positions, they ignore the screaming they hear every night, until at last they call in Ludovic Travers - via his sister Helen - to investigate.But on Travers' first night-time visit to the house, he finds Quentin dying of a stab wound.While Travers begins to uncover the truth about Highways, young Jeanne goes…