Vince vaughn leads the cast in this body swap comedy horror. A teenage girl switches bodies with a relentless serial killer!    high school senior millie is just trying to survive being the unpopular kid when she becomes the butcher's next target. Their fateful encounter gets twisted and they wake up in each other's bodies. Now looking like a towering psychopath, millie learns she only has 24 hours to reverse the curse and get her body back before the switch becomes permanent and she's trapped in the form of a middle aged maniac forever.