Five years ago, three little girls were murdered in their beds, posed like sleeping angels by a twisted killer. With no witnesses and no leads, Detective Kitt Lundgren was forced to look on helplessly - mocked by a psychopath proud of his perfect crimes. Following a new spate of murders, it looks like the Sleeping Angels killer has retuned - but Kitt's not so sure.
When the unthinkable happens, and The Sleeping Angel Killer himself approaches Kitt offering to help her catch his copycat, Kitt must make a choice. Allow the killings to continue? Or place her trust in a murderer who has taken the art of the perfect murder to horrific new heights - and might well plan to make her his next victim.