Longbill Beach, 1982. Emily Vaughn gets ready for the prom. For an athlete, who is smart, pretty and well-liked, this night should be the highlight of her high school career. But Emily has a secret. And by the end of the evening, that secret will be silenced forever. Forty years later, Emily’s murder remains a mystery. Her tight-knit group of friends closed ranks; her respected, wealthy family retreated inwards; and the small town moved on from her grisly attack. But that's all about to change. US Marshal Andrea Oliver arrives in Longbill Beach on her first assignment: to protect a judge receiving death threats. But, in reality, Andrea is there to find justice for Emily. The killer is still out there --- and Andrea must discover the truth before she gets silenced, too.