Longbill Beach, 1982. Emily Vaughn gets ready for prom night, the highlight of any high school experience. But Emily has a secret. And by the end of the evening, she will be dead.

A murder that remains a mystery... Forty years later, Emily's murder remains unsolved. Her friends closed ranks, her family retreated inwards, the community moved on. But all that's about to change.

One final chance to uncover a killer... Andrea Oliver arrives in town with a simple assignment: to protect a judge receiving death threats. But her assignment is a cover. Because, in reality, Andrea is here to find justice for Emily - and to uncover the truth before the killer decides to silence her too...