Undertow

A routine missing-person job lands on the desk of QuicK Investigations: a man has vanished, and his pregnant girlfriend wants him found. Yet the leads point somewhere much stranger. Sarah and John must work out who Orie Kavlar really is and why he has disappeared. They also need to establish how he connects to a dead girl discovered on a patch of waste ground in Sandyford, and to Darren Wallace, a former gangland figure.

Sarah and John's partnership is already fraying. Their personal relationship has sunk to a low point, and the killing of Sarah's former boyfriend, Vic, has added to the strain. Vic was a violent and unstable man, but Sarah refuses to let John help her with the aftermath, and the distance between them grows.

As the pair dig into Kavlar's past, their questions reach people who would rather they stopped. One man decides he has too much to lose and moves against them. Sarah and John are pulled into a current of violence that threatens to drag them under, drawing them into the most dangerous case they have faced.