a group of people be invite to there high school reunion and but after they arrive they discover it to be a scam by an old classmate they play an almost fatal prank on . now and he seek to get revenge on all those that hurt him by seal all the exit and cut off all telephone line . dark slasher film with an unexceptional premise . bring it up a notch be a few good performance and some rather creative death scene and plenty of excitement and scare and some humor and an original end . unrated for extreme violence and graphic nudity and sexual situation and profanity and drug use .