A small town hides a big secret... Who killed Emily Vaughn? A girl with a secret... Longbill Beach, 1982. Seventeen-year-old Emily Vaughn is preparing for prom, which promises to be the most important event of the year. But she has one secret. A secret that will cost her life by the end of the evening. An unsolved murder...Forty years later, the girl's murder remains a mystery. The police had many suspects, but absolutely no evidence. The company of best friends remains silent, Emily's rich and influential family has cut herself off from the world, and the residents of the town have long forgotten about her. The mysterious deaths continue... Federal Marshal Andrea Oliver arrives in Longbill Beach on her first assignment: to protect a judge who has begun to receive threats. But in reality, Andrea intends to solve Emily's murder. Her investigation leads her to a series of mysterious deaths, too suspicious for such a small town. Only one thing is clear - the killer is still at large, and this is the last chance to catch him. Andrea must find out the truth before she too is silenced...