Cain—hearing a killer's last words, "You're next,"—knows his time is running out, not only for him but for his entire team. As members of his team search for the still missing Bullard in the ocean, Cain has focused on tracking the killer's history, hopefully to lead to the madman after them all. A trip to Sicily brings more information to light but also more puzzles to sort out. And an unexpected light in Cain's life.

When Petra picks up the two men at the airport, she has no idea how fast her personal life is about to unravel. Not only do these men bring up old terrible memories but they also shine a light on an ugly corner of town. People she avoids at all costs.

Still she can't afford to dwell on the past, as her present blows up. With Cain and Eton at her side, they're all trying to stay alive, as the bodies drop around them.