The Promise — Katerina Diamond

When troubled teen Connor moves to Exeter from the US after a horrific school shooting, he finds himself embroiled in a world of popular kids and easy girls. Everyone wants to be his friend, but they don't know about what he did…and they don't know about his father.

As Connor's life in England begins to unravel, DS Adrian Miles and his partner Imogen Grey are working up against the clock to catch a serial killer who dates his victims before he kills them. Determined to uncover the truth, Imogen is forced to act as bait -- but will she take it too far and risk her own life?