His break-ins are careful. His attacks are savage. His confidence is growing . . .

DI Zoe Dolan is tracking a stalker who brutally attacks women in their own homes. With no idea how he gets in, or who he'll target next, the case is at a dead end - until a tip-off from a confidential helpline.

But instead of helping, the new information drags Zoe deeper into the darkness. As the psyche of a vicious criminal threatens to drown her, the traumas of the past she's never escaped creep closer and closer.

Now, for Zoe and the other women of the city, nowhere is safe. Particularly their own bedroom in the dead of night . . .