During the session, Chrissie apparently becomes possessed by an entity claiming to be Alison's father, warning her that something bad will occur on her 19th birthday.
Uncle Dean tells Alison the construct was built by the home's previous owner, who was an enthusiast of ancient history.
To prevent him from returning, Dean and Jenny drug Alison, causing her to fall ill, and summon a false doctor to diagnose her.
Jenny and Dean manage to coach the inebriated Alison into telling the police that Pete has been stalking her, causing him to be arrested.
Pete surmises that Dean and Jenny plan to sacrifice Alison to a Celtic demon named Mirna, who is commonly associated with the number 19.
Alison is initially oblivious to what has occurred, but screams in horror when she sees her aged hands, realizing that her soul has been transferred to the 104-year-old body of Grandmother Thorne.
[3] Meaghan Morris of the Sydney Morning Herald deemed the film a "letdown" overall, but conceded that it was "well made, mildly entertaining, and occasionally funny.