New York Times best-selling author Wendy Corsi Staub has sold more than four million copies of her heart-pounding thrillers. Here, the tale that began with Nightwatcher continues with Sleepwalker. Allison Taylor MacKenna barely survived a decade earlier when a serial killer ravaged New York City. Though the killer is now dead, Allison discovers that the nightmare is far from over. More women are turning up dead, murdered in the same way as before. Allison's life is in danger once again -- this time, from the man she loves.