Ten years ago, a group of young friends went seeking youthful adventure.
But something else happened. Something terrible.
They made a pact to never speak of it, not to anyone - not even with each other, no matter what. Now, they have grown up and grown apart, each trying desperately to move on from the day that changed everything while finding their way in the world. But a brutal murder occurs, and it is one of them - a haunting reminder of their fateful connection. Then another, and in the ensuing killing spree across the country it becomes clear that one by one everyone there that day is a target, or a suspect. They quickly realize that they must band together against the unstoppable, vengeful force who wants their silence broken or it will silence them forever...