Fiona Bristow, the only survivor of the Red Scarf serial killer who shot and killed her fiancé and his K-9 partner, is living quietly on Orca Island off the Seattle coast where she runs a thriving dog-training business, when her life is disrupted by artist Simon Doyle who is desperate for help in calming his wild puppy, and by the emergence of a copycat killer who wants the woman that got away.