The affluent seaside resort of Smalting is unaccustomed to crime. So when human remains are found beneath the floorboards of one of its beach huts, the community is awash with suspicion and fear. Amateur sleuths Carole Seddon and best friend Jude are drawn into the mystery, and their suspicion quickly falls on attractive Philly Rose, a young Londoner newly arrived in the area, whose boyfriend has recently vanished in mysterious circumstances.