On a vacation road trip to Lake Tahoe, nine unassuming college kids stumble into the den of a night-stalking secret clan who herd them into a mysterious enclave. Now deep into the woods and cut off from the modern world, the young collegians are forced to trust the mom and pop leaders of the clan -- Millie, the menacing matriarch of the village, and Lawrence, it's smiling but sinister patriarch. But when the sect's deadly rituals becomes the stuff of horror and their friends start to disappear into the night, the remaining kids are forced to run for their lives as these two worlds collide.