While her rehab counselor's advice replays in her mind, Ansley Boone takes on the role of dutiful bridesmaid in her little sister's wedding at an isolated resort in the middle of hill country, a place where cell reception is virtually nonexistent and everyone else there seems a stranger primed to spring.

Tensions are already high between the Boones and their withdrawal-suffering eldest, who has since become the family embarrassment, but when the wedding reception takes a vicious turn, Ansley and her sister must work together to fight for survival and escape the resort, before the groom's cannibalistic family adds them to the post-wedding menu.