When DI Donna Davenport is called out to investigate a body washed up on Arbroath beach, it looks like a routine murder inquiry. But then the enquiry takes on a more sinister form.

There are similarities with a previous murder, and now a woman connected to them both has also gone missing. For Donna, this is becoming personal, and with the added pressure of feeling watched at every turn, she is convinced that Jonas Evanton has returned to seek his revenge on her for his downfall.

Fearing they may be looking for a serial killer, Donna and her new team are taken in a horrifying and unexpected direction. Because it's not a serial killer – it's worse.

Moving from Dundee to the south coast of Turkey and the Syrian border, this is a fast paced novel about those who live their lives in the shadows, and those who exploit them.