六位大学的好朋友举办了他们自己的私人毕业派对，当一位不速之客到来时，派对发生了不可思议的事情五年后，女孩们再次聚在一起，一个更加恐怖和流血的夜晚等待着她们。反正欧美恐怖片套路就是作死小分队，逐个杀... Six college best friends throw their own private graduation party that goes terribly wrong when an uninvited guest arrives. Five years later, the girls gather once again and endure a night of far more horror and bloodshed.