In Cameron, friends of hunters is attacked by a wild animal, and Charlie Cowley survives, but sees his brother Scott dying. Seven decades after, his nephew Derek Cowley occupies the key of his step father's cabin and journeys with four classmates along with his friend Sam to spend the weekend. However, they're attacked by a Beast that kills his own friends in a way. Derek and sam survive, and so they guess that his stepfather, Mitchell Toblat, is just really a werewolf. When Charlie matches Derek and Sam, they opt to amass evidence to establish that Mitchell is your Beast and kill himbut Mitchell finds their plot and chases the trio.