If you loved Killing Ground, try Backtrack
A bridge between a film you've already seen and one most people haven't. Here's what they share, and what the second one does that the first one doesn't.
What they share
Theysit in Horror / Mystery / Thriller territory. If that's the register that drew you to Killing Ground, the second film will land in a comparable space — through a different lens.
What Backtrack is
Empty train platform. Winter dusk. A child's distant laughter. Haunted by waking nightmares, a therapist discovers his patients share a terrifying, impossible secret. Returning to his long-abandoned hometown, he finds the source. A sturdy, if unremarkable, modern ghost story.

