It starts as a prank - a way to blow off steam after a long summer at Camp Horseshoe. Monica O'Neal has it coming, and no one will really get hurt...

Twenty years later, detective Lucas Dalton is investigating the discovery of human remains at the old campsite. Lucas worked there during the infamous summer when two girls went missing.

That's why he's called five former counsellors back to town - including Bernadette Warden, the woman Lucas has never forgotten. Each one knows something about that terrible night. And as they reunite, a new horror unfolds. First comes a simple, terrifying message:

YOU WILL PAY.

Then, the dying starts.