Annabelle has had many names in her life - Sally, Cindy, Lucille. Every few months she had to pack a single bag, as her father moved the family from city to city, changing names, houses, careers and histories. But Annabelle never knew what they were running from. Now in her thirties, with both parents dead, she's settled in Boston. But old habits die hard and she still looks over her shoulder when she leaves her apartment, still blends in with the crowd on the subway.

Then at the Boston State Mental Hospital a multiple grave is discovered. Six young girls were left to die in an underground chamber decades ago, while their captor looked on. When her original name appears in the paper, wrongly identifying her as one of the dead girls, Annabelle finally knows why her father kept running. But the killer is still on the loose. And he's been looking for her for a very long time.

Bobby Dodge has been haunted by the Catherine Gagnon case for years. It nearly cost him his job and his sanity. As a child, Catherine was also held prisoner underground, like the victims in this latest case. But Catherine's captor was in prison when these girls were taken. Yet the similarities are too numerous to be just coincidence...