Eighteen years ago, FBI profiler Evelyn Baine's best friend, Cassie Byers, disappeared, the third in a series of unsolved abductions. Only a macabre nursery rhyme was left at the scene, a nursery rhyme that claimed Evelyn was also an intended victim. Now, after all these years of silence, another girl has gone missing in South Carolina, and the Nursery Rhyme Killer is taking credit. But is Cassie's abductor really back, or is there a copycat at work?