Summer, 1982. Five friends discover an ancient stone box hidden deep in the woods. They seal inside of it treasured objects from their childhoods, and they make a vow: Never come to the box alone. Never open it after dark. Never take back your sacrifice. Four years later, a series of strange and terrifying events begin to unfold: mirrors inexplicably shattering, inanimate beings coming to life, otherworldly crows thirsting for blood. Someone broke...