It is the summer of 1956, and fifteen-year-old Betty Broadbent has never left the Cornish fishing village of St. Steele or ventured far beyond the walls of the Hotel Eden, the slightly ramshackle boarding house run by her moody, unpredictable mother. But Bettys world is upended when a string of brutal murders brings Londons press corps flooding into the village, many of whom find lodging at the Hotel Eden.