After surviving her serial killer father, Morgan Ames has her first chance at a life without killing. Until temptation crosses her path as she's working at an anonymous call center and realizes someone there is playing vigilante...and getting away with murder.

Morgan's fascinated, unable to look away as the killer grows bolder. Only Morgan sees the pattern, only Morgan has any idea the vigilante exists, and they're never going to stop killing—unless Morgan stops them.

But should Morgan accept that sometimes the only way to get justice is outside of the law? Should she join forces with the vigilante and return to her old life of murder and mayhem? Or risk her new life trying to stop them?