DI Ellen Kelly is struggling through some difficult changes in her life. Her boss has left, replaced by a more unpredictable DCI. Her career seems to be stalling, again. And her feelings for Jim O'Dwyer feel like they're spiralling out of her normally tight control. Distraction can be very dangerous. Someone is out there, stalking the weak, bringing misery and fear, and it's Ellen's job to stop it. Could it be that this time, for the first time, Ellen is the one trapped in the web?