 They've planned out their special day in painstaking detail, from what to wear to who to invite.Everything seems to be going well until Doreen's brother Travis (Frank Zieger) shows up with a present for his sister, a beautiful but cursed locket that causes Doreen to get possessed by the Devil.Now Travis and Hank have to drive to Las Vegas in order to find Johnny Priest (Llou Johnson) a homeless exorcist and the last known person to have successfully performed an exorcism- something made more difficult because they only have 72 hours to find Johnny and perform the exorcism before Doreen's soul is forever lost.