No one knows Margo's real name. Her colleagues and patrons at a small-town public library only know her middle-aged normalcy, congeniality, and charm. They have no reason to suspect that she is, in fact, a former nurse with a trail of countless premature deaths in her wake. She has turned a new page, so to speak, and the library is her sanctuary, a place to quell old urges. That is, at least, until Patricia, a recent graduate and failed novelist,...

Madeline Martin has built a life for herself as the young owner of a thriving business, The Next Chapter Bookshop, despite her tragic childhood and now needing to care for her infirm father. When Harley Granger, a failed novelist turned true crime podcaster, drifts into her shop in the days before Christmas, he seems intent on digging up events that Madeline would much rather forget. She's the only surviving victim of Evan Handy, the man who was convicted...